New Zealand tree (5)
I believe the answer is:
ngaio
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">new zealand tree</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 ngaio that I've seen before include "New Zealand tree" , "foreign tree" , "wood" , "- - Marsh, crime writer" , "- Marsh, NZ detective novelist" .)