vindicate vs vindicator

vindicate is not a noun while vindicator is a noun.

Word	Noun	Adjective	Verb	Adverb
vindicate	No	No	Yes	No
vindicator	Yes	No	No	No

vindicate (noun)	vindicator (noun)
	a person who argues to defend or justify some policy or institution

vindicate (verb)	vindicator (verb)
show to be right by providing justification or proof
clear of accusation, blame, suspicion, or doubt with supporting proof
maintain, uphold, or defend