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