Plane's staff has tune cut (7)
I believe the answer is:
aircrew
'plane's staff' is the definition.
(I've seen this before)
'tune cut' is the wordplay.
'tune' becomes 'air' (air can mean a piece of music).
'cut' becomes 'crew' (crew cut is a type of haircut).
'air'+'crew'='AIRCREW'
'has' acts as a link.
(Other definitions for aircrew that I've seen before include "Flight staff" , "Rice war? (anag)" , "Plane's operators" , "Pilot, co-pilot, etc" , "Regular high fliers" .)