officiant vs man of the cloth

officiant and man of the cloth both are nouns.

Word	Noun	Adjective	Verb	Adverb
officiant	Yes	No	No	No
man of the cloth	Yes	No	No	No

As nouns, man of the cloth is a hypernym of officiant; that is, man of the cloth is a word with a broader meaning than officiant:

officiant: a clergyman who officiates at a religious ceremony or service
man of the cloth: a member of the clergy and a spiritual leader of the Christian Church

Other hypernyms of officiant include clergyman, reverend.

officiant (noun)	man of the cloth (noun)
a clergyman who officiates at a religious ceremony or service	a member of the clergy and a spiritual leader of the Christian Church