Ring again for annulment? (6)
I believe the answer is:
repeal
I believe this clue is a double definition.
'ring again' is the first definition.
('peal' can be a synonym for 'ring' so perhaps 'repeal' is OK for 'ring again')
'for annulment?' is the second definition.
(synonyms)
(Other definitions for repeal that I've seen before include "Countermand" , "Annulment" , "Annul, rescind" , "reverse" , "set aside" .)