clear up

verb

To clarify, to correct a misconception.
To depart or disappear.
“All of their symptoms cleared up after the mold was removed.”
To become free of certain blemishes.
“With the new cleanser, his skin cleared up in two weeks.”
“His lung X-rays cleared up after they moved to Arizona.”
Of stormy weather, to dissipate, to become calm.
“Advise him to stay a little longer till the weather clears up.”
To clean up.
“Accepting that incidents will always happen, what then matters is how quickly we can clear up the mess, something British Rail was better at. [...] I would turn up as quickly as possible in the on-call Hillman Avenger and assess how quickly we could clear up.”
To pot all of the remaining balls in a single turn.