1: Bees encircling trash--back, over, and above (7)
4: Pen opening regularly, bearing volatile, flammable liquid (7)
8: Broadcast share in genuine show trial (9)
10: Leaf in fancy plate (5)
11: In the manner of a girl (3)
12: Private cabin, say, with space (9)
13: Light up during fire sale (5)
14: Of course, Alan truly is weird (9)
17: Classic Australian theatre patrons shocked in Dee Why (4,5)
20: Scholars in Sunday School a long time (5)
22: Impugn guest in R.I. for clandestine affairs (9)
23: Hear Native American appeal (3)
24: A drain could be at the bottom (5)
26: Caught up in son's greed unfortunately (9)
27: Soundly folds belt, does evening wear (7)
28: After the legal thing, give thanks to God and go after the vermin again (7)