Poorly fed (12)
I believe the answer is:
malnourished
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">poorly fed</span>' is the definition.<br/ ><span class="explanation-format__explanation">(I've seen this before)</span><br/ ><br/ >This is the entire clue.<br/ ></span>
(Other definitions for malnourished that I've seen before include "Underfed" , "Starved" , "Provided with inadequate sustenance" , "poorly fed" .)