9a) A drunken sot and German are staggering (7) ??????D
13d) Select a flower, say, for vegetable preserve (10) ???C?????I
20d) Artist David with minutes not hours? It's affected speech (7) ??????Y
25a) Chess player Nigel leans over and selects best candidate (10)
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28a) On the loose student breaks into great complex (2,5) ?? ????E
All help greatly appreciated