The term DUSTER can be broken down into two crossword solutions: RAG (3 letters) and MAID (4 letters). A duster is a cleaning tool used to remove dust from surfaces. It is usually made of a soft material such as cloth, feathers, or fur. A RAG is a piece of cloth that can be used as a duster. Maids are people who are employed to clean and maintain a home or other building. Therefore, a duster can be either a RAG or a MAID.