Malay sailing boat (4)
I believe the answer is:
proa
'malay sailing boat' is the definition.
(I've seen this before)
This is all the clue.
(Other definitions for proa that I've seen before include "Malay sailing boat with outrigger" , "Malay boat with identical ends and one outrigger" , "Vessel" , "Malay sailing-boat" , "Boat's" .)