Captain Hook's helper (4)
I believe the answer is:
smee
'captain hook's helper' is the definition.
(I've seen this in another clue)
This is all the clue.
(Other definitions for smee that I've seen before include "Hook's bosun (Barrie)" , "Captain Hook's bosun!" , "Stage boatswain" , "Captain Hook's sidekick" , "Hook's bo'sun (Peter Pan)" .)