Float like a helicopter (5)
I believe the answer is:
hover
'float like a helicopter' is the definition.
(I've seen this in another clue)
This is all the clue.
(Other definitions for hover that I've seen before include "Remain suspended" , "Remain in the air; linger" , "Hang in the air or waver" , "Fly over same spot" , "Float in one place in the air" .)