Japanese mushroom (5)
I believe the answer is:
enoki
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">japanese mushroom</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 enoki that I've seen before include "Fare from the Far East" , "Oriental mushroom; E ikon (anag.)" , "Japanese mushroom type" , "Japanese food" .)