mudslinger vs disparager

mudslinger and disparager both are nouns.

Word	Noun	Adjective	Verb	Adverb
mudslinger	Yes	No	No	No
disparager	Yes	No	No	No

As nouns, disparager is a hypernym of mudslinger; that is, disparager is a word with a broader meaning than mudslinger:

mudslinger: one who spreads real or alleged scandal about another (usually for political advantage)
disparager: one who disparages or belittles the worth of something

Other hypernyms of mudslinger include depreciator, detractor, knocker.

mudslinger (noun)	disparager (noun)
one who spreads real or alleged scandal about another (usually for political advantage)	one who disparages or belittles the worth of something