Buccaneers (7)
I believe the answer is:
pirates
'buccaneers' is the definition.
('pirate' can be a synonym of 'buccaneer')
This is all the clue.
(Other definitions for pirates that I've seen before include "More than one brigand" , "Sea trip (anag.)" , "Bad sailors" , "Copies" , "felons found in craft?" .)