Leguminous vegetable (3)
I believe the answer is:
pea
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">leguminous vegetable</span>' is the definition.<br/ ><span class="explanation-format__explanation">(I've seen this before)</span><br/ ><br/ >This is all the clue.<br/ ></span>
(Other definitions for pea that I've seen before include "Vegetable in a whistle" , "The plant is a strange ape" , "veg" , "Ape this plant awkwardly" , "Common vegetable seed from pod" .)