Passed shuffled cards (6)
I believe the answer is:
'cards' is the definition.
(spade is a kind of card)
'passed shuffled' is the wordplay.
'shuffled' is an anagram indicator.
'passed' anagrammed gives 'SPADES'.
(Other definitions for spades that I've seen before include "Does some groundwork" , "those getting soiled?" , "Black suit" , "Implements for a suit" , "Shovels or playing cards" .)