clear up vs clarify

clear up and clarify both are verbs.

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

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

Other hypernyms of clear up include clear up, elucidate.

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

Other synonyms of clear up include elucidate.

clear up (verb)	clarify (verb)
free (the throat) by making a rasping sound	make clear by removing impurities or solids, as by heating
finish a task completely	make clear and (more) comprehensible
make free from confusion or ambiguity; make clear
make clear and (more) comprehensible
become clear