Edict possibly mentioned (5)
I believe the answer is:
cited
'mentioned' is the definition.
('cite' can be a synonym of 'mention')
'edict possibly' is the wordplay.
'possibly' indicates an anagram.
'edict' is an anagram of 'CITED'.
(Other definitions for cited that I've seen before include "Commended" , "Quoted or mentioned as example" , "Called for" , "Made reference to -- edict (anag)" , "Summoned" .)