Character who did some fancy flying for the boys (7)
I believe the answer is:
biggles
I'm afraid I can't even guess how this answer relates to the clue.
Can you help me to learn more?
(Other definitions for biggles that I've seen before include "Fictional Royal Flying Corps hero" , "Pilot" , "W. E. Johns's flying ace" , "Hero of books by WE Johns" .)