Young crabs? (7)
I believe the answer is:
nippers
I believe this clue is a double definition.
'young' is the first definition.
'crabs?' is the second definition.
(animals which might nip with their claws)
(Other definitions for nippers that I've seen before include "pickpockets" , "They put the squeeze on" , "Claws; children" , "Small children" , "kids?" .)