Insect larva (4)
I believe the answer is:
grub
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">insect larva</span>' is the definition.<br/ ><span class="explanation-format__explanation">(grub is a type of insect larva)</span><br/ ><br/ >This is the entire clue.<br/ ></span>
(Other definitions for grub that I've seen before include "Larva; food (sl.)" , "Gentle, food" , "Table needs" , "Nosh - larva" , "Insect larva or slang food (4)" .)