A hard wood (4)
I believe the answer is:
teak
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">a hard wood</span>' is the definition.<br/ ><span class="explanation-format__explanation">(I've seen this before)</span><br/ ><br/ >This is the entire clue.<br/ ></span>
(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" .)