Ministers' cupboard (7)
I believe the answer is:
cabinet
I believe this is a double definition.
'ministers'' is the first definition.
(government ministers)
'cupboard' is the second definition.
(I've seen this before)
(Other definitions for cabinet that I've seen before include "Chiffonier" , "Item of furniture for storage or display" , "meeting at Number Ten" , "Can bite (anag.)" , "Type of cupboard" .)