Phrasal Verb: Clear up

Meaning: Cure or recover from an infection

Example: I took the antihistamines and the rash CLEARED UP right away.

Meaning: Tidy up

Example: I'd better CLEAR AWAY the mess before leave.

Meaning: Explain

Example: Could you CLEAR these points UP before we go any further?

Meaning: Improve (weather)

Example: The skies CLEARED UP and the sun came out.