A jumpy flight? (3)
I believe the answer is:
hop
'flight?' is the definition.
(thesaurus)
I can't explain the remainder of the clue.
Can you help me to learn more?
(Other definitions for hop that I've seen before include "Dried flower; jump" , "Beer flavouring; jump" , "'..., step and jump (3)'" , "Climbing plant - jump!" , "Jump on a pogo stick" .)