1: Rear oat variety as a way to break up the soil (7)
4: Prattle about nothing, meaning spear (7)
7: Asian capital managed by board (7)
9: Religious observance improves personality a little (7)
11: Adult party to entertain disheartened women (5-2)
12: In no state to contain a pregnant virgin? (3)
13: Anger that is constraining response (3)
14: Fast times with company cracked high-strung recruiter (6,5)
17: Concealed hot part of psyche (3)
18: Inflexible yet adjusted (3)
19: Incomplete raw data lies in largely unexplored regions (4,7)
23: Duck turning up initially looking like a Walt Disney animated goose (7)
25: Nits are possibly more unpleasant (7)
26: This would make me a lord (7)
27: Detains stranger as a substitute (7)
28: Dozens of sprites seen on Tuesday and Wednesday initially (7)