Lobster pincer
I believe the answer is:
claw
'lobster pincer' is the definition.
(I've seen this in another clue)
This is all the clue.
(Other definitions for claw that I've seen before include "Rake" , "Hook of some birds and animals" , "Talon" , "Sharp curved toe of a bird" , "Lobster's grasping structure" .)