cleanup vs clean up

cleanup is a noun but clean up is not a noun.

Word	Noun	Adjective	Verb	Adverb
cleanup	Yes	No	No	No
clean up	No	No	Yes	No

cleanup (noun)	clean up (noun)
the act of making something clean
(baseball) the fourth position in the batting order (usually filled by the best batter on the team)
a very large profit

cleanup (verb)	clean up (verb)
	make oneself clean, presentable or neat
	put (things or places) in order
	finish attending to
	make a big profit; often in a short period of time