Moan and groan (7)
(Other definitions for grumble that I've seen before include "Complain, be a grouch" , "what Meldrew does" , "Murmur with discontent" , "Express dissatisfaction" , "Grievance" .)
'moan and groan' is the definition.
(I've seen this in another clue)
This is all the clue.
(Other definitions for whine that I've seen before include "Grumble" , "carp" , "Whimper" , "Petulant complaint" , "Complaining cry" .)