clear up vs finish up

clear up and finish up both are verbs.

Word	Noun	Adjective	Verb	Adverb
clear up	No	No	Yes	No
finish up	No	No	Yes	No

As verbs, clear up and finish up are synonyms defined as:

Other synonyms of clear up include finish off, get through, mop up, polish off, wrap up.

clear up (verb)	finish up (verb)
free (the throat) by making a rasping sound	finish a task completely
finish a task completely	finally be or do something
make free from confusion or ambiguity; make clear
make clear and (more) comprehensible
become clear