Comes into line for clothes (7)
I believe the answer is:
dresses
I believe this is a double definition.
'comes into line' is the first definition.
('dress' can be a synonym of 'come into line')
'clothes' is the second definition.
(I know this)
'for' is the link.
(Other definitions for dresses that I've seen before include "Costumes" , "sacks, possibly" , "Decorates" , "Puts clothes on" , "falls into line" .)