Hangs in the air (6)
I believe the answer is:
hovers
'hangs in the air' is the definition.
('hover' can be a synonym of 'hang in the air')
This is the entire clue.
(Other definitions for hovers that I've seen before include "Floats above" , "Hangs in the air without moving" , "Hangs in the air (unable to decide?)" .)