1: Alcohol and tobacco - they can get a grip on you, we hear (5)
2: $100 accepted by tart in buff (5)
3: Things get loose when there's a deficiency in the directions. (7)
4: Definitely the recital is arranged (7)
5: Gymnast produces hybrid of car and boat (7)
6: Heard about ark's leader taking census; just worthless (2-7)
7: Kept definitely in step (9)
9: Cheer supporting blue automaton (5)
12: Completely drenched, laid umbrella tip gauge down (9)
13: Lignite with low carbon content (5,4)
16: Good eater has more gut upsets (7)
17: Charged a couple of hundred, getting exploited (7)
18: Recipe including bull's heart is first class (7)
19: Frost over mid-January during epic exploit (3,2)
22: Note found in prison is swell (5)
23: Vapour trapped in paste amethyst (5)