Directors supporting trophy cabinet (8)
I believe the answer is:
cupboard
'cabinet' is the definition.
(I've seen this before)
'directors supporting trophy' is the wordplay.
'directors' becomes 'board' (board of directors).
'supporting' says to put letters next to each other (in a down clue, some letters go below others).
'trophy' becomes 'cup' (cup is a kind of trophy).
'board' after 'cup' is 'CUPBOARD'.
(Other definitions for cupboard that I've seen before include "Storage unit" , "Kitchen storage" , "Closet" , "Store for crockery etc" , "Where Old Mother Hubbard went to get her poor dog a bone" .)