"Peter Pan" predator (4)
I believe the answer is:
croc
'peter pan predator' is the definition.
(I've seen this in another clue)
This is all the clue.
(Other definitions for croc that I've seen before include "Small animal" , "Small reptile" , "Wild animal" , "that might be sitting on your foot" , "Single-handed mariner's nemesis" .)