clean

See:

a clean bill of health a clean break a clean sheet a clean slate a clean sweep be as clean as a whistle clean act up clean as a hound's tooth clean down clean off clean out clean out of clean plate

clean plow clean sweep clean the floor up with clean up clean up act clean-cut cleaned out come clean fresh out have a clear conscience have clean hands keep hands clean keep nose clean

make a clean breast of make a clean breast of it make a clean sweep New brooms sweep clean poor but clean scrub off show a clean pair of heels so clean you could eat off the floor squeaky clean start with a clean slate wipe slate clean and wipe the slate clean wipe the slate clean