Flying vehicle (8)
I believe the answer is:
aircraft
'flying vehicle' is the definition.
(I've seen this before)
This is the entire clue.
(Other definitions for aircraft that I've seen before include "I cart RAF? (Anag)" , "Airbus A380 or Boeing 777, say" , "Flying machines" , "Eg, seven four seven or Airbus" , "Vehicle that can fly" .)