Not suitable as food; uneatable (8)
I believe the answer is:
inedible
<span class="explanation-format__ClueExplanation">This clue is a double definition.<br/ ><br/ >'<span class="explanation-format__original">not suitable as food</span>' is the first definition.<br/ ><span class="explanation-format__explanation">(I've seen this before)</span><br/ ><br/ >'<span class="explanation-format__original">uneatable</span>' is the second definition.<br/ ><span class="explanation-format__explanation">(synonyms)</span><br/ ><br/ ></span>
(Other definitions for inedible that I've seen before include "needing to be taken off table?" , "unfit for course!" , "Not suitable as food" , "Not fit to eat" , "Awful to taste" .)