Working a lot with new claw (5)
I believe the answer is:
talon
'claw' is the definition.
(talon is a kind of claw)
'working a lot with new' is the wordplay.
'working' indicates anagramming the letters.
'with' means one lot of letters go next to another.
'new' becomes 'n'.
'a'+'lot'='alot'
'alot' anagrammed gives 'talo'.
'talo'+'n'='TALON'
(Other definitions for talon that I've seen before include "Bird's claw" , "one that grips" , "E.g. hawk's claw" , "Claw of a bird of prey" , "Eg, an eagle's claw" .)