Suit passed out (6)
I believe the answer is:
spades
'suit' is the definition.
(playing card suit)
'passed out' is the wordplay.
'out' indicates anagramming the letters (out can mean wrong or inaccurate).
'passed' with letters rearranged gives 'SPADES'.
(Other definitions for spades that I've seen before include "Shovels or playing cards" , "Card suit and sturdy shovels" , "trumps sometimes" , "Digging implements" , "They may turn up" .)