Cabinet assistant (7)
I believe the answer is:
dresser
I believe this is a double definition.
'cabinet' is the first definition.
(I've seen this before)
'assistant' is the second definition.
(dresser is a kind of assistant)
(Other definitions for dresser that I've seen before include "Theatre worker back-stage" , "behind the scenes" , "Kitchen sideboard - theatre employee" , "Domestic furnishing" , "One putting things on" .)