1: Strangely enough, cat's lease keeps getting bigger (9)
2: Reptile eventually climbing a hill (5)
3: Transfer back beat (5)
5: Candidate has no time for ease, apparently (7)
6: Remove top substituting pints for cups (5)
7: First bud to emerge in flower. (5)
12: Gorilla taking head off at it's base! (3)
13: Consumed, beginning at the end (3)
15: Sprinted fleetly? (3)
16: Age of neo-catastrophe? (3)
17: Ninth-inning heroics on one side or the other (9)
19: Hear out cryptic writer (7)
22: One in charge of carbon filament (5)
23: Fruit found in Carmel only (5)
24: Statues which aren't solid? (5)
25: Poles suffer internally - they're hard (5)