Young insects (6)
I believe the answer is:
larvae
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">young insects</span>' is the definition.<br/ ><span class="explanation-format__explanation">(I've seen this in another clue)</span><br/ ><br/ >This is the entire clue.<br/ ></span>
(Other definitions for larvae that I've seen before include "Insects just out of the eggs" , "Eg, caterpillars" , "Insects in immature state" , "Grubs" , "Wormlike forms of insects" .)