Grumble when husband gets in hock, perhaps (5)
I believe the answer is:
Here is my best explanation:
'grumble' is the definition.
(I've seen this before)
'husband gets in hock perhaps' is the wordplay.
'husband' becomes 'h'.
'gets in' is an insertion indicator.
'hock perhaps' becomes 'wine' (hock is a kind of wine).
'h' inserted within 'wine' is 'WHINE'.
'when' acts as a link.