magician vs exorciser

magician and exorciser both are nouns.

Word	Noun	Adjective	Verb	Adverb
magician	Yes	No	No	No
exorciser	Yes	No	No	No

As nouns, exorciser is a hyponym of magician; that is, exorciser is a word with a more specific, narrower meaning than magician:

Other hyponyms of magician include enchanter, exorcist, magus, sorceress, witch doctor.

magician (noun)	exorciser (noun)
one who practices magic or sorcery	someone who practices exorcism
someone who performs magic tricks to amuse an audience