2: Bugs going after quiet gags (7)
6: I hear a type of officer is a sort of fruit (5)
9: Take Chair in university (3)
10: Man, what an avant-garde US artist! (3)
11: A legendary string player, he joins us after turning professional (7)
12: Make money and set out to be serious (7)
13: Made certain condemned is guillotined (7)
15: A grim ball gown, uncomfortable in increasing temperature (6,7)
19: Something good made by mini drink packer! (6,7)
20: He got ripped exhibiting selfish behavior (3,4)
21: Sneaking a look at someone making a little noise (7)
23: Grant again drew one crookedly (7)
25: Neither's partner participated in an orchestra (3)
27: Zantac's first in things to buy for composer (5)
28: Particular esteem (7)