Unsure, in a schedule: Abbr. Unreturned serves, in tennis UK Royal Navy designation: Abbr. Understand, as a joke Unruly head hair Unpaid loan, e.g. U.N. agency for workers: Abbr. ___ up (cheers up) Under-the-table money Unit of electrical resistance "U" in CPU UFO being Underground tree network Urban vehicle for hire Unexpected turn in the story Unexpected obstacle "Uncle," in Spain Unit of electrical resistance Unlocked, as a door Uber's pickup approximation: Abbr. Unreturned tennis serve Utilize Untidy room, say "___ Up Boo!" 1995 The Boo Radleys song featuring Simon Gardner on the trumpet Used a chair Unpleasant sound Use a needle and thread Unknown author, briefly Use a keyboard, say Underworld big shot UV-blocking rating, on a sunscreen bottle: Abbr. "Up for it?" Unit of weight Umpire's headwear Unconvincing, as an excuse Up to the task "U Got It Bad" one-named singer Unruly children Urban pollution result Underground nutrition networks for plants Understood, as a pun "Uncle," in Spanish "Uptown Funk" singer Bruno Unhealthy air to inhale Untruthful one Untrustworthy, slangily Unconvincing, as an excuse UN group that protects workers: Abbr. Unwashed clothing accumulation ___-up (exercise) "Uncle," in Spanish Up the ___ (increase the stakes) Under ___ (sworn to say nothing but the truth) "Use me" box URL ender, sometimes Unit of electrical resistance "Unplugging" star Longoria Uses a shovel ___ up (repressed) UN agency for workers: Abbr. Use a drum throne, say Up to today Urgent police alert: Abbr. "Ugh, this is so gross!" Uno or Crazy Eights, e.g. Ugg boot's bottom Unwell and ailing Unruly child ___ up (deck up) ___ up (confess) Use one's eyes Unkempt hair U-Haul rental ___ up with (tolerate) "Ultraviolence" singer ___ Del Rey URL letters Use scissors, say Unstable nuclear particle Unsatisfactory, as quality Unagi, e.g. Unclothed, for one (anagram of "bear") Use a needle and thread Up, as the morning sun Unnecessary commotion University URL ending, perhaps Uncle Scrooge's cry Underside of a shoe Uber's offering Unexpected glitch Urgent letters? Use a needle and thread, for one "Unlock" to Robert Frost Unorganized crowd Umbrella or tree offering Use a keyboard, say ___-up (bottled-up, as emotions) Uttered, as a farewell UFO pilots: Abbr. Utter or speak U.S. Senator ___ Sanders University faculty member, for short Urban visibility hazard Usual coffee order, for short Unnecessary commotion Used a doorbell, say U.N. workers' agency: Abbr. "Under the ___," 1947 novel by Malcolm Lowry whose final eleven chapters take place over a single day Undergarment with a hook, perhaps "U" in CPU "___ Up," dance film franchise ___ Union, "Bad Boys II" actress who voiced Meridian Clade in the 2022 film "Strange World" Utilizes, as an oven "Ultimate X-___," Marvel Comics series written by Robert Kirkman that revolves around a group of mutants Used the couch, say "Uncle ___," 1989 comedy film directed by John Hughes starring John Candy "... Used to ___ and call him names..." "U" in CPU Uber's drop status: Abbr. Uniformed troop Urban haze Use a Kindle, say Unwritten exam Use a keyboard, say "Use Somebody" band Kings of ___ Unhappy or distressed ___ up (confess) UFO's occupants: Abbr. "___ used to it!" Used a shovel, say Undergarment with straps Unventilated room's lack URL punctuation Undistracted, as attention (anagram of "trap") ___ up (absorb) Underground channel that carries waste material Use a keyboard to enter this clue's answer, e.g. Utilize, say U2's lead vocalist Unleash a tirade Used a bicycle, say Use a stencil UN arm that supports workers: Abbr. Uncontaminated Unnamed and utmost degree Use as support, with "on" Up to ___ (adequate) Upper crust of society ___ urchin (marine creature) Uber ___ (food delivery platform) United ___ Emirates Under the weather Undisclosed author, briefly Unimpressed utterance Undercover agent Unwanted memory gaps Unpleasant person Use the wheel of fortune, say Utah's ski destination Undecided TV schedule initials UK TV network: Abbr. ___-up (cosmetics) Use a straw "...Up above the world so ___..." Unruly mass of people Used the couch, say "U" in E.U. University URL's ending letters U-turn from "WNW": Abbr. Use a crowbar, say Unnecessary uproar Unimagined roadblock Units of electrical resistance U.K.-based language reference book (anagram of "doe"): Abbr. Used a shovel Use a rocking chair, say Undergarment with straps, perhaps "Ugh!" kin Uses a calculator's "+" sign Unwanted email UN agency for workers: Abbr. University URL-ending letters Uber driver's location tracking aid: Abbr. Untidy stack of laundry, say Unreturnable tennis shot Use a beauty blender Utter nonsense (rhymes with "gripe") ___ up (take the blame for) Used an armchair Unwanted growth in a pool Up to the task, say User of "the Force," in "Star Wars" ___ up (start an engine) UFC combat sport: Abbr. United ___ Emirates Use a ";-)" emoji Unkind and wicked ___ Underwood, female protagonist on "House of Cards," played by Robin Wright Unwrapped and unboxed, as birthday presents Unit of hope? Uses elbow grease on U.K.-based vocabulary volume: Abbr. Unit of electric current, for short Unpopular and much hated spots Used an ottoman "___ Up Is Hard to Do," 1962 song by Neil Sedaka that topped the U.S. Billboard Hot 100 Unit of resistance Use a needle and thread, say "...up above the world so ___..." U-turn from "WSW" Underworld bigshot Used the pool, say Up ___ grabs (available) ___ up with (tolerate) United States of ___, country that won the 2017 edition of the World Baseball Classic tournament Unit of energy that sounds like "juul" Unwanted plant Underground rock that's refined Unpaid TV ad that lectures you: Abbr. U.N. group for workers everywhere: Abbr. Umpteen number of centuries, say University admissions' email ender: Abbr. USA's ___ Coast (Atlantic Coast) Unit of Easter bread U.S. president Lincoln, fondly Ugly beast in the enchanted forest Unrefined stuff that's smelted Used a rocking chair Under the weather, say United ___ Emirates Undergarment with a clasp Umberto ___, Italian author of "The Name of the Rose" Use a straw to drink, say Uncle from patriotic posters "Unbreakable ___ Schmidt," sitcom with an interactive sequel on Netflix Use a sofa Utterly unskilled (anagram of "nepit") Undercover operative, say Unruly kid you may charge extra for babysitting UV-blocking lotion rating: Abbr. Unit of energy (anagram of "reg") Unit of weight equal to 2,000 pounds Use a stencil on, say "___ up straight!" ("Don't slouch!") Unit of electrical resistance United ___ Emirates (Abu Dhabi's country) Uncooked, like fish inside a sushi roll Use the keyboard, say Use a needle and thread United ___ Emirates Unhappy or miffed, say (anagram of "setup")