| Idiom | Meaning | Example | 
| clean up on | 
defeat, beat, whip you, wipe you
 | 
Little Chad cleaned up on big Clint. Chad is quite a fighter.
 | 
| clean up your act | 
do it better, do it legally, get your act together
 | 
I've missed classes, failed tests. I need to clean up my act.
 | 
| clean up your plate | 
finish eating all the food on your plate, eat it up
 | 
You may leave the table after  you've cleaned up your plate.
 | 
| clear as a bell | 
easy to hear or understand, clearly audible
 | 
We heard him say it. He said no, clear as a bell.
 | 
| clear as mud | 
not understandable, confusing
 | 
Mr. Lee explained the formula. Then he said, "Clear as mud, eh?"
 | 
| clear out | 
leave, go, get out, take off
 | 
When the gang arrived, we cleared out. We left in a hurry.
 | 
| clear out | 
sell at a low price, sell at a discount
 | 
We're clearing out last year's stock at 20% off.
 | 
| clear sailing | 
(See smooth sailing)
 | 
 | 
| clear the air | 
explain, talk about a problem openly
 | 
His statement will clear the air. It will prevent more confusion.
 | 
| clear up | 
explain, discuss so everyone understands
 | 
Let's clear up the matter of the missing keys. Were they stolen?
 |