Insect crawling on dry flag (9)
I believe the answer is:
dragonfly
'insect' is the definition.
(dragonfly is a kind of insect)
'crawling on dry flag' is the wordplay.
'crawling' indicates an anagram (letters crawl around).
'on'+'dry'+'flag'='ondryflag'
'ondryflag' with letters rearranged gives 'DRAGONFLY'.
(Other definitions for dragonfly that I've seen before include "Large winged insect" , "it wings along" , "creature!" , "Large hovering insect" , "Insect with two pairs of transparent wings" .)