muckraker vs disparager

muckraker and disparager both are nouns.

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

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

muckraker: 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 muckraker include depreciator, detractor, knocker.

muckraker (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