Eg, pea or bean (6)
I believe the answer is:
legume
<span class="explanation-format__ClueExplanation">I believe this is a double definition.<br/ ><br/ >'<span class="explanation-format__original">eg pea</span>' is the first definition.<br/ ><span class="explanation-format__explanation">(I know that pea is a type of legume)</span><br/ ><br/ >'<span class="explanation-format__original">bean</span>' is the second definition.<br/ ><span class="explanation-format__explanation">(I've seen this before)</span><br/ ><br/ ></span>
(Other definitions for legume that I've seen before include "A fruit that bears its seed in pods" , "A vegetable for e.g. mule" , "Veg as pea, bean" , "Bean, pea etc" , "mangetout for instance" .)