Overeat (5)
I believe the answer is:
gorge
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">overeat</span>' is the definition.<br/ ><span class="explanation-format__explanation">(I know that overeat can be written as gorge)</span><br/ ><br/ >This is the entire clue.<br/ ></span>
(Other definitions for gorge that I've seen before include "Canyon or ravine" , "Stuff oneself (with) - Cheddar, for example" , "Deep valley" , "Overindulge" , "Overeat in the deep ravine" .)