Clubs in correct order (5)
I believe the answer is:
edict
'order' is the definition.
(synonyms)
'clubs in correct' is the wordplay.
'clubs' becomes 'c' (abbreviation used in card games such as bridge).
'in' means one lot of letters goes inside another.
'correct' becomes 'edit' (edit can mean to correct or emend).
'c' put inside 'edit' is 'EDICT'.
(Other definitions for edict that I've seen before include "Order issued by an authority" , "Legally binding command" , "Authoritative decree" , "Formal announcement" , "Decree by authority" .)