Avian claw (5)
I believe the answer is:
talon
'avian 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" , "one that grips" , "One hooked on bird" , "Eg, an eagle's claw" , "Sharp hooked claw" .)