Hammer part (4)
'hammer part' is the definition.
(I know that peen is part of hammerhead)
This is the entire clue.
'hammer part' 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 "Lobster's pincer" , "Hook on the end of toe" , "See 24" , "See 3" , "Sharp curved toe of a bird" .)