clear away—
1. (of clouds, fog, etc.) vanish; disappear:
- The mist cleared away as the sun came out.
2. clear the table:
- Mother always clears away when we have finished eating.
clear off—
1. (coll., often imper.) be off; go away (also: clear out):
- I told them to clear off and threatened to call the police.
2. (coll., also: clear out) run away; leave in a hurry:
- When he saw the policeman, he cleared off as fast as his legs could carry him.
3. = clear away 1:
- This fog cleared off more quickly than others and after an hour it was just overcast and warm.