enlarge vs clear up

enlarge and clear up both are verbs.

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

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

enlarge: add details, as to an account or idea; clarify the meaning of and discourse in a learned way, usually in writing
clear up: make clear and (more) comprehensible

Other hypernyms of enlarge include clarify, elucidate.

enlarge (verb)	clear up (verb)
become larger or bigger	free (the throat) by making a rasping sound
make large	finish a task completely
make larger	make free from confusion or ambiguity; make clear
add details, as to an account or idea; clarify the meaning of and discourse in a learned way, usually in writing	make clear and (more) comprehensible
	become clear