Falcon's claw (5)
I believe the answer is:
talon
'falcon's claw' is the definition.
(I've seen this in another clue)
This is the entire clue.
(Other definitions for talon that I've seen before include "Hooked claw; cards left after deal" , "Bird of prey's claw" , "One hooked on bird" , "Large claw" , "Bird's claw" .)