To reform by removing undesirable personnel and procedures.(verb)
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Use "clean house" in a sentence
"She took a deep breath, drawing in the familiar smells of a clean house — fabric softener, computer fans going full-blast, Cath's strawberry incense, the smell of gun oil and healthy human animals."
"But no kid is sleepin in my clean house without a bath, without a shampoo, without a delousin, an, most specially, without new clothes—ya hear!"