1: Bugs going after quiet gags (7)
2: Mikes good tackling ice tower (6,3)
3: Talk about rent for a piece of property (7)
4: Monarch met monarch in even open space for coin-operated machines (7,6)
5: They teach large groups of swimmers (7)
6: Remove a couple of statues before writing on some tombstones (5)
7: Intrinsically, lilac queries development of wood varnish (7)
9: Impatient dope confused designated hour (9,4)
14: Self-indulgent life of dolt upset by musical (5,4)
15: Agent stretches the truth in answers (7)
16: Tucks in untidy singlets, missing the tail end (7)
18: Field worker finding insect on vegetables (7)
19: Told about Trotsky hoarding cash (3,2,2)
21: Tied down holding back fighting (5)