Very overweight (5)
I believe the answer is:
obese
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">very overweight</span>' is the definition.<br/ ><span class="explanation-format__explanation">(I've seen this in another clue)</span><br/ ><br/ >This is all the clue.<br/ ></span>
(Other definitions for obese that I've seen before include "Extremely overweight" , "Carrying far too much weight" , "Falstaffian" , "Morbidly overweight" , "Extremely fat" .)