Pesky insect (4)
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">pesky insect</span>' is the definition.<br/ ><span class="explanation-format__explanation">(I've seen this in another clue)</span><br/ ><br/ >This is all the clue.<br/ ></span>
(Other definitions for gnat that I've seen before include "Small, swarming insect" , "Midge, mosquito" , "Woodland area" , "small irritant" , "Any of various small biting flies" .)
(Other definitions for flea that I've seen before include "high-jumper" , "Little jumping insect" , "Blood-sucking parasites" , "Tiny circus performer?" , "Small blood-sucking insect" .)