Edible tuber (5,6)
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">edible tuber</span>' is the definition.<br/ ><span class="explanation-format__explanation">(yam is a type of tuber)</span><br/ ><br/ >This is all the clue.<br/ ></span>
(Other definitions for yam that I've seen before include "Tropical root vegetable" , "Tropical tuber" , "Tropical climber" , "US sweet-potato" , "May be a sweet spud" .)
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">edible tuber</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 potato that I've seen before include "hard to handle when hot" , "Starchy tuber" , "It's often baked" , "Inert person" , "Spud (6)" .)
(Other definitions for spud that I've seen before include "The common potato" , "Commoner's King Edward?" , "The popular potato" , "King Edward, e.g." , "One could be in jacket" .)
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">edible tuber</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 sweet potato that I've seen before include "Edible tuber" , "Yam-like vegetable" , "Slightly sugary root vegetable" , "South American vegetable" , "Vegetable akin to yam" .)