Complain when husband gets stuck into the sherry (5)
I believe the answer is:
whine
'complain' is the definition.
(whining is a kind of complaining)
'husband gets stuck into the sherry' is the wordplay.
'husband' becomes 'h'.
'gets stuck into' means one lot of letters goes inside another.
'the sherry' becomes 'wine' (I've seen this in another clue).
'h' going inside 'wine' is 'WHINE'.
'when' is the link.
(Other definitions for whine that I've seen before include "Petulant complaint" , "Gripe" , "Complaining cry" , "carp" , "Complain peevishly" .)