The term CLEANING DEVICE can be broken down into two crossword solutions: MOP and RAG. A MOP is a cleaning tool consisting of a handle, a long pole, and a head made of absorbent material such as cotton, microfiber, or synthetic fibers. It is used to clean floors by soaking up liquid and dirt. A RAG is a piece of cloth used for cleaning or wiping surfaces. It is usually made from an old piece of clothing or other fabric. Both mops and rags are commonly used for cleaning purposes.