Clouts flying insect (6)
I believe the answer is:
locust
'insect' is the definition.
(locust is a kind of insect)
'clouts flying' is the wordplay.
'flying' indicates anagramming the letters.
'clouts' anagrammed gives 'LOCUST'.
(Other definitions for locust that I've seen before include "Swarming, destructive insect" , "Voracious insect, travels in swarms" , "Destructive migratory insect" , "Grasshopper of warm regions" , "Sturdy, resilient" .)