Cry feebly (7)
I believe the answer is:
whimper
'cry feebly' is the definition.
(I've seen this before)
This is the entire clue.
(Other definitions for whimper that I've seen before include "Cry weakly or softly" , "Whine" , "Snivel" , "Complaint" , "Cry feebly or plaintively" .)