Shop exit? (6)
I believe the answer is:
outlet
I believe this clue is a double definition.
'shop' is the first definition.
(I've seen this before)
'exit?' is the second definition.
('outlet' can be a synonym of 'exit')
(Other definitions for outlet that I've seen before include "Exit for water or steam" , "Retail point" , "Means of release" , "Discharge pipe" , "Maths relationship" .)