CLEANEST

To remove dirt from a place or object.

"Can you clean the windows today?"

To tidy up, make a place neat.

"Clean your room right now!"

To remove equipment from a climbing route after it was previously lead climbed.

(heading, physical) Free of dirt or impurities or protruberances.

(heading, behavioural) Free of immorality or criminality.

Smooth, exact, and performed well

"I’ll need a sharper knife to make clean cuts.  a clean leap over a fence"