Marriage proclamation (5)
I believe the answer is:
banns
'marriage proclamation' is the definition.
(I've seen this in another clue)
This is all the clue.
(Other definitions for banns that I've seen before include "Notice of a wedding" , "Public announcement read in church of forthcoming marriage" , "Notice of marriage read in church" , "Pre-wedding notice" , "Proclamation of intended marriage" .)