Complained (6)
'complained' is the definition.
(whining is a kind of complaining)
This is the entire clue.
(Other definitions for whined that I've seen before include "Complained in petty or feeble way, like dog" , "Whinged, snivelled" , "Made high complaining cry as of a dog" , "Made pathetic complaints" , "Complained peevishly" .)
(Other definitions for moaned that I've seen before include "Made low sound of pain - or grumbled" , "Complained" , "Made low sound of pain or distress" , "Made low mournful sound as of pain" , "A demon (anag.)" .)
(Other definitions for beefed that I've seen before include "complained" , "Grumbled in meaty way" .)