Senior ministers in the closet? (7)
I believe the answer is:
cabinet
I believe this is a double definition.
'senior ministers' is the first definition.
(I've seen this before)
'the closet?' is the second definition.
(thesaurus)
'in' is the link.
(Other definitions for cabinet that I've seen before include "Collective noun for senior ministers" , "Display cupboard - senior ministers" , "meeting of governors" , "Type of cupboard" , "some senior politicians" .)