A decree wrongly cited (5)
I believe the answer is:
edict
'a decree' is the definition.
(I know that decree can be written as edict)
'wrongly cited' is the wordplay.
'wrongly' is an anagram indicator (I've seen this in other clues).
'cited' is an anagram of 'EDICT'.
(Other definitions for edict that I've seen before include "Legally binding command" , "Canon" , "Cited an official proclamation" , "Formal proclamation" , "Decree, order" .)