Such a rite is suited to a solemn sacrament (9)
I believe the answer is:
eucharist
'sacrament' is the definition.
(I know that Eucharist is a type of sacrament)
'such a rite is suited to a solemn' is the wordplay.
'such a rite' can be anagrammed to 'EUCHARIST'.
But, I am not clear how the anagram is indicated.
Can you help me to learn more?
(Other definitions for eucharist that I've seen before include "Bread and wine" , "Mass" , "host" , "Consecrated bread" , "church service" .)