Bird's claw (5)
I believe the answer is:
talon
'bird's claw' is the definition.
(I've seen this before)
This is all the clue.
(Other definitions for talon that I've seen before include "Hooker" , "E.g. hawk's claw" , "Tonal (anag.)" , "one that grips" , "Raptor's claw" .)