Capital ditching old religious ceremony (9)
I believe the answer is:
sacrament
'religious ceremony' is the definition.
(I know that sacrament is a type of religious ceremony)
I don't understand the remainder of the clue.
Can you help me to learn more?
(Other definitions for sacrament that I've seen before include "Religious ritual" , "Form of religious observance" , "Orders" , "Holy ritual" , "Religious ceremony" .)