clean up vs neaten

clean up and neaten both are verbs.

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

As verbs, neaten is a hypernym of clean up; that is, neaten is a word with a broader meaning than clean up:

Other hypernyms of clean up include groom.

As verbs, clean up and neaten are synonyms defined as:

Other synonyms of clean up include square away, straighten, straighten out, tidy, tidy up.

clean up (verb)	neaten (verb)
make oneself clean, presentable or neat	care for one's external appearance
put (things or places) in order	put (things or places) in order
finish attending to
make a big profit; often in a short period of time