Brain has retired!
7A Knowing there's a fight to get the key (5) _ _ S _ _
22A An ear, perhaps, for music? (5) _ _ _ _ N
1D He won't get the sack if the bag's big enough (10)
_ _ _ E _ _ _ P _ R
4D Greyhound? (3,3) _ A _ / DOG
17D It has wings and flies (5) _ T _ _ _
Cut some French meat up (4) C _ _ _