Hazelnut (7)
I believe the answer is:
filbert
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">hazelnut</span>' is the definition.<br/ ><span class="explanation-format__explanation">(synonyms)</span><br/ ><br/ >This is all the clue.<br/ ></span>
(Other definitions for filbert that I've seen before include "Type of hazelnut" , "Nut -- left rib (anag)" , "Hazel nut" .)