Rotorcraft (8)
I believe the answer is:
autogyro
'rotorcraft' is the definition.
(I've seen this before)
This is the entire clue.
(Other definitions for autogyro that I've seen before include "Rotating-wing aircraft" , "Rotorcraft" , "Small rotating-winged aircraft" , "Type of aircraft - yoga tour (anag)" , "Form of aircraft" .)