Grumble when husband gets in hock, perhaps (5)
I believe the answer is:
whine
'grumble' is the definition.
(I've seen this before)
'husband gets in hock perhaps' is the wordplay.
'husband' becomes 'h' (abbreviation).
'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.
(Other definitions for whine that I've seen before include "Moan" , "Querulous complaining" , "Complain peevishly" , "Whimper" , "Shrill sound of dog" .)