Alterations in the bell-ringer's programme (7)
I believe the answer is:
changes
'alterations' is the definition.
('change' can be a synonym of 'alteration')
I don't understand the remainder of the clue.
Can you help me to learn more?
(Other definitions for changes that I've seen before include "Alters" , "Alterations" , "Modifications" , "album track" , "Remixes" .)