The Times Cryptic puzzle clues 2015 Apr 20

• A fellow undermining a research institute is American Crossword Clue
• Albert backing into this shrub? Crossword Clue
• Angry language from one stuck in traffic Crossword Clue
• An impressive total by the sound of it Crossword Clue
• A superior end to programme containing awful music Crossword Clue
• Boasting about sport Crossword Clue
• Chaps touring America, in charge of providing concerts there Crossword Clue
• Common sense line is swamped by fantasy, first off Crossword Clue
• Complaint of top people in time Crossword Clue
• Disapprove of drop in price — first sign of interest disappearing Crossword Clue
• Dog food Crossword Clue
• Enthusiasm to collect information that's discarded as useless Crossword Clue
• Final word by Democrat, a politician putting things right Crossword Clue
• Girl in musical is carrier of the French disease Crossword Clue
• Gloucester visitor without care going out? Should have listened to me maybe! Crossword Clue
• Is lad involved with crime saying ' I didn't do it'? Crossword Clue
• Learning English initially tricky as a rule Crossword Clue
• Newbies about to join short voyage needing time to settle in Crossword Clue
• Not like prose, mostly heavy, penned by copper? Crossword Clue
• One allegedly very drunk individual in Milton Keynes? Crossword Clue
• Pest in big house attached to a plant Crossword Clue
• Prominent features, light red, in the auditorium Crossword Clue
• Ref shouts violently, demonstrating irascibility Crossword Clue
• Sailors at the back of cutters were in dazed state Crossword Clue
• Snow now disappearing? Then manage field Crossword Clue
• Somehow friendly perkiness got man upset Crossword Clue
• Stop monarch crossing island — one hoping to expand empire? Crossword Clue
• Wind enters through rainproof shelter Crossword Clue
• Win once more having taken the lead Crossword Clue