Lamb's cry (5)
I believe the answer is:
bleat
'lamb's cry' is the definition.
(I've seen this before)
This is the entire clue.
(Other definitions for bleat that I've seen before include "Sheep's weak cry" , "Make a noise like a sheep" , "Table (anag.)" , "Lamb's cry" , "Cry of a sheep or calf" .)