Sometimes when we use the word clean we’re not talking about actually making something dirty clean again.
*Clean of: free of, rid of. “I’m clean out of blackberry jelly so I’m hoping to make several runs this summer.”
*Clean his plow: to put one in their place, sometimes in a physical way. “What that smartelic needs is for somebody to clean his plow and I’m a telling you I’m just the man to do it!”