Likely to rot quickly (10)
I believe the answer is:
perishable
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">likely to rot quickly</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 perishable that I've seen before include "won't last long" , "(Of food) likely to rot" , "likely to go off" , "easily spoilt" , "Likely to rot quickly" .)