Yam (5,6)
I believe the answer is:
sweet potato
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">yam</span>' is the definition.<br/ ><span class="explanation-format__explanation">(I've seen this in another clue)</span><br/ ><br/ >This is the entire clue.<br/ ></span>
(Other definitions for sweet potato that I've seen before include "Edible root of the Americas" , "Tropical root vegetable" , "Yam-like vegetable" , "Paste too wet (anag.)" , "South American vegetable" .)