Hairdresser under sail? (7)
I believe the answer is:
clipper
I believe this clue is a double definition.
'hairdresser' is the first definition.
(I've seen this before)
'under sail?' is the second definition.
(I've seen this before)
(Other definitions for clipper that I've seen before include "Fast commercial sailing ship" , "that has slight collision with another?" , "one docking?" , "Fast sailing ship of former times" , "carrying tea in the old days" .)