The Telegraph Toughie puzzle clues 2020 Apr 15

• & 12 Across Work could produce gloominess in monks Crossword Clue
• 54 year old historian Crossword Clue
• Birds pecking one with tip of their sharp beaks Crossword Clue
• Cans with rings on top Crossword Clue
• Check mate for Eeyore? Crossword Clue
• Crazy Magpies choir's making earth-shaking records Crossword Clue
• Early KP's to burst into this? Crossword Clue
• I'd return rolls to get butter in Crossword Clue
• In tennis, unsuccessfully hit Henman's returns, losing to love! Crossword Clue
• Island venue for Bill 'Aley fans? Crossword Clue
• Maker of razor with unknown alloy Crossword Clue
• Massive build-up of earthy peat Crossword Clue
• Old record store certain others dubiously exploit Crossword Clue
• Overwhelming force gripping North America, I have to retreat Crossword Clue
• Players run out in famous red Crossword Clue
• Predecessor of SI encapsulated by metres and things like that Crossword Clue
• Provides backing musicians but no leader Crossword Clue
• Recording established in Slough base Crossword Clue
• Researcher has job over in Washington Crossword Clue
• Scenery that should not change over centuries Crossword Clue
• See 26 Across Crossword Clue
• Staunch scientific subjects Crossword Clue
• Temporary feature of football Crossword Clue
• The power of mathematics Crossword Clue
• They may learn to operate as groups of three Crossword Clue
• Very slender support for striker Crossword Clue
• Watered-down like some cheap beer served round hotel Crossword Clue
• What could transport adept dealers round Mississippi primarily? Crossword Clue