Impair. Inflict a blemish on Injure Impair It follows Leap Day: Abbr. Impair Impair Injure It ends tomorrow: Abbr Irish-American Heritage Mo Impair Injure Impair, spoil Impair with regular scratching? Impair Impair, spoil Impair Injure in attack with bow raised Impair Is this a rip off in Split? It's found in scores "I'll make a __ of it" IOU It can cause inflation Informal letter "In the ___ Tonight" (Phil Collins song) It's all around us Inner tube filler It could be half or whole on a scale It can be hot, thin or cold It's passed in class It's got you surrounded It's about 1 percent argon It's about 20 percent oxygen Inner tube's innards It's mostly nitrogen Inflation cause? It's inspired iPad ___ It's got you surrounded It's inspired iPad ___ It's thinner as you go up It's inspired It's roughly 78% nitrogen It's thin on top of Everest Intangible quality It's mostly nitrogen It's mostly nitrogen It's caught on halfpipes It's inspired It's mostly nitrogen It's inhaled It's about 78% nitrogen Inhaled stuff It can be hot, thin or cold It's got you surrounded It's about 1 percent argon It's about 20 percent oxygen Inner tube's innards It's mostly nitrogen It's mainly nitrogen In retrospect, model on first assignment told tales about morality in the past "Into Thin __": Jon Krakauer book It's all around you It's all around us It can be thin but not fat 'Into Thin __': Jon Krakauer book It's all around you It's all around us It can be thin but not fat It's primarily nitrogen It's cast in concrete It's mainly nitrogen It's gas for all sides today In an ____ kiss, the lips do not touch It's what we breathe It fills balls It may be polluted Inflation stuff It may be fresh or polluted It can fatten a GPA It may be fresh, stale or polluted Inflation material It can be fresh but not insulting It can be fresh but not insulting It leaks from some tires Inspired stuff Invisible necessity Its product names have a lot of umlauts and slashed o's Its products often have Allen wrenches included Its 2003 catalog was printed in 25 languages Its USA Web site Online Assistant is named Anna Its first store opened in Älmhult, Sweden, in 1958 It sells a lot of build-it-yourself furniture It's all around us but we can't see it Its headquarters are in Delft Ingvar Kamprad's furniture company It's hard to fail Its material is not hard "Intro to Ballroom Dancing," most likely Its 2003 catalog was printed in 25 languages Its USA Web site Online Assistant is named Anna Its first store opened in Älmhult, Sweden, in 1958 It sells a lot of build-it-yourself furniture Its material is not hard Its headquarters are in Delft Its logo uses Sweden's national colors In full bloom, as flowers In full flower In full bloom It acquired Stør in 1992 Its first store opened in 1958 in Älmhult, Sweden International retailer whose name is an acronym International furniture retailer Its logo includes its name in blue letters in a yellow oval Its products often have Allen wrenches included In full bloom International company with an acronymic name Its motto is "Affordable solutions for better living" Ingvar Kamprad's company International company with an acronymic name Initiate. In business. Its product names may contain umlauts Initiate Inaugurate Ingenuous In business In full view Its logo uses Sweden's national colors It can go flat "I'll make a __ of it" Its products often have Allen wrenches included International retailer founded in Sweden It may be sticky Importance It can follow the starts of 17-, 32-, 41- and 59-Across "Into the Great Wide ___" It may be sharp International furniture chain It may say "Pick up bread" Ill-fed Ill-fed Ill-fed Its products often come with Allen wrenches Its merchandise often comes with pictorial instructions It might be mental It can keep you from your dreams Inability to appreciate R.E.M.? It can put a stop to your dreams It'll keep you up Impair It takes your breath away Indicate. Importance. I.O.U. I.O.U., e.g. I.O.U., for one It takes your breath away It'll take your breath away Importance It can fall flat It takes your breath away It might make you snort It might keep you up at night It's breath-taking Interrupted breathing IOU, e.g. It may cause snoring It may be jotted It can be made sharp It's passed in school Interrupted breathing Intake interruption while asleep? It's passed in class It takes your breath away It can be flat It can fall flat Item passed in class Informal letter It can go flat It may be passed in school "I'll make a ___ of it" It may be passed in class It's passed in class It can fall flat It may be passed in class It's passed in class It may have many X's and O's It may be passed in class It may take your breath away It may be passed in class It may be mutual It can follow the starts of 17-, 32-, 41- and 59-Across Importance It may be sharp It may be revolving or sinking It may be mutual It may be sinking or revolving It may be sinking In business right now In full flower Inclusive tournament type In business right now In full bloom Instruction from a dentist Inclusive tournament type In full bloom In other people's eyes, nobody tops Frank It's ''broken'' in the three longest answers Instruction from a dentist Inviting store window sign Inviting store window sign Impartial to the extremes of opium den Ingenuity It may be sharp It may be modern or fine Illustrations It may be fine or lively It may be a bust "In ___ economy is always beauty": Henry James It can be kinetic "It's pretty, but is it ___?"—Kipling. Ingenuity. "Imitation of nature." It's not a lot to jot "It's pretty, but is it ___?" It helps one remember something It's sometimes abstract It could be fine Installation, e.g. It might imitate life It's often left hanging "___ is never finished, only abandoned": Leonardo da Vinci It might be a bust It's a bust, maybe Inexact field Illustrations Impressive skill Illustrations "In ___ economy is always beauty": Henry James It's often framed It "enables us to find ourselves and lose ourselves at the same time": Merton Interior decorator's concern "___ is long . . . " It comes after wherefore, in a Shakespeare line Interpretive dance, e.g. It may be lost or dying "___ is long . . . ": Longfellow