clear up

verb

cleared up; clearing up; clears up

1

of weather or the sky : to change so that there are no clouds, fog, etc.

The sky cleared up after the rain.

It's cloudy now, but it's clearing up gradually.

2

of the skin : to become free of marks or spots

My skin cleared up when I started using the cream.

3

: to go away

My symptoms cleared up once I started using the cream.

4

British : to make an area clean or tidy

Let's clear up before we leave.