Husband finished float (5)
I believe the answer is:
hover
'float' is the definition.
(I've seen this before)
'husband finished' is the wordplay.
'husband' becomes 'h'.
'finished' becomes 'over' (over can mean finished or ended).
'h'+'over'='HOVER'
(Other definitions for hover that I've seen before include "Float hanging in the air" , "What some cross-Channel craft do" , "Stay near" , "Fly over same spot" , "Float above in the air, perhaps a craft" .)