Small hawk (4)
I believe the answer is:
kite
'small hawk' is the definition.
(I've seen this in another clue)
This is the entire clue.
(Other definitions for kite that I've seen before include "Flying toy or kind of hawk" , "Soaring bird of prey" , "Bird (that can be flown!)" , "Quadrilateral; bird" , "Kind of toy flown on string" .)