Adorn; pack (of cards) (4)
I believe the answer is:
deck
I believe this clue is a double definition.
'adorn' is the first definition.
(I know that deck is a kind of adorn)
'pack of cards' is the second definition.
(a deck of cards)
(Other definitions for deck that I've seen before include "Pack - embellish - ship's floor" , "fell to floor" , "Pack - floor in boat" , "Ship's platform" , "part of ship" .)