Done Thing is a phrase used to describe an action that has been completed or finished. It is often used in the context of a task or job that has been accomplished. The term Done Thing can also be used to refer to something that is considered to be socially acceptable or appropriate. The crossword solutions for the term Done Thing are FORM, which is a four-letter word meaning to create or construct something. FORM can also refer to a document or other written material that is used to provide information or instructions.