Pilot's compartment (7)
I believe the answer is:
cockpit
'pilot's compartment' is the definition.
(I've seen this in another clue)
This is all the clue.
(Other definitions for cockpit that I've seen before include "Site of numerous battles or campaigns" , "Compartment for aircraft pilot" , "Racing driver's seat" , "not suitable for a hen party" , "Pilot's cabin" .)