1: Heard about ark's leader taking census; just worthless (2-7)
2: Tries getting involved in real drama practice (9)
3: Gets high by direct routes? (9)
4: Reportedly pull down more money at work (5)
5: Grown-up kids' tender hearts god broke? (9)
7: Small crewmen back rockets (5)
9: Solo, the pilot rises? No way (3)
13: Warped ramp given overhaul (9)
14: Keep an eye on a new teak floor (4,5)
15: Former spouse looking after offering (9)
16: Race cars Dr. Silver steers without trace of effort (9)
18: March follower off with pair left behind (5)
19: Make an average float (5)
20: Ensemble originally formed with ocarina, cello, theremin, euphonium, and tabla (5)
21: One politician's a brat (3)