Girl Ed’s flying around in plane (6)
I believe the answer is:
'plane' is the definition.
(glider is a type of plane)
'girl ed's flying around' is the wordplay.
'flying around' is an anagram indicator.
'girled' with letters rearranged gives 'GLIDER'.
'in' acts as a link.
(Other definitions for glider that I've seen before include "craft without power" , "Aircraft supported solely by air" , "Unpowered plane" , "Flying machine without engine" , "A sort of possum" .)