1: Falstaff's first clever lie (5)
2: Ace girl gets it wrong (5)
3: Mechanical worker pushing start button in the depths of the plant (5)
4: Musical direction for an old poet (7)
5: Gradually reduce European Community requisitions for playback devices (4,9)
6: Rejecting help, soldiers taking numbers for identification (9)
7: Always heading off without getting paid (9)
9: Holder of strange ritual of troll (5,8)
12: Over 24 hours, Parisian street may feel remorse (3,3,3)
13: Sander, too, bothered dust devils (9)
16: Built exotic deer, etc. (7)
19: Small town, oddly, has room (5)
21: Loud den has style! (5)