Tuber that can be candied (3)
I believe the answer is:
yam
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">tuber that can be candied</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 yam that I've seen before include "Tropical tuber" , "A starchy tuber" , "Potato-like vegetable" , "American sweet potato" , "Edible root" .)