Ceremonial (6)
'ceremonial' is the definition.
(I've seen this before)
This is all the clue.
(Other definitions for ritual that I've seen before include "Regular stereotyped action" , "Regular habit" , "Code of ceremonies" , "Customary observance or practice" , "Stereotyped behaviour" .)
'ceremonial' is the definition.
(similar in meaning)
This is the entire clue.
(Other definitions for formal that I've seen before include "Punctilious" , "Done in accordance with etiquette" , "Stately or official" , "Befitting a person in authority" , "Precise - ceremonial" .)