Break down (food) (6)
I believe the answer is:
digest
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">break down food</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 digest that I've seen before include "Shorten" , "Absorb and assimilate, like food" , "Periodical that summarises the news" , "Break down (food)" , "Process food" .)