Not the only one to be predaciously grasping (5)
I believe the answer is:
talon
'grasping' is the definition.
Although both the answer and definition are singular nouns, I cannot understand how they can define each other.
'not the only one to be predaciously' is the wordplay.
I cannot really understand how this works, but
'not' could be 'o' (I've seen this in other clues) and 'o' is present in the answer.
'the' could be 't' (the is pronounced as a 't' sound in some dialects) and 't' is found in the answer.
'one' could be 'a' (a thing is one thing) and 'a' is found within the answer.
This may be the basis of the clue (or it may be nonsense).
Can you help me to learn more?
(Other definitions for talon that I've seen before include "ogee moulding" , "Holding part of flier" , "Claw of a bird of prey" , "Raptor" , "Part of hobby" .)