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.
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.
We have 4 phrasal verbs with 'CLEAR'