Pirate hideout, perhaps (4)
I believe the answer is:
cove
'pirate hideout perhaps' is the definition.
(I've seen this in another clue)
This is the entire clue.
(Other definitions for cove that I've seen before include "A small inlet or slangy bloke" , "Sheltered accommodation" , "Small bay - fellow" , "Old fish" , "Bloke; bay" .)