Magazine in the loo (6,4)
I believe the answer is:
powder room
This clue is a double definition.
'magazine' is the first definition.
(I've seen this before)
'the loo' is the second definition.
(thesaurus)
'in' is the link.
(Other definitions for powder room that I've seen before include "Loo (in restaurant, store etc)" , "Magazine, perhaps" , "Part of Arsenal" , "a place for explosive stuff" , "Where ladies go" .)