A hard wood (4)
I believe the answer is:
teak
'a hard wood' is the definition.
(I've seen this before)
This is the entire clue.
(Other definitions for teak that I've seen before include "Hard wood used for furniture" , "Hard durable timber" , "Hardwood found naturally in the Far East" , "Valuable, dense wood" , "Take away with very hard wood" .)