Jolly Roger crewman (4)
I believe the answer is:
smee
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">jolly roger crewman</span>' is the definition.<br/ ><span class="explanation-format__explanation">(I've seen this in another clue)</span><br/ ><br/ >This is the entire clue.<br/ ></span>
(Other definitions for smee that I've seen before include "Captain Hook's sidekick" , "Literary pirate" , "Captain Hook's right-hand man" , "Local duck" , "Hook's bosun (Barrie)" .)