Droning insect (6)
I believe the answer is:
cicada
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">droning insect</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 cicada that I've seen before include "Droning bug" , "six-footer?" , "Large bug" , "chirpy creature" , "one that loves the heat" .)