The crossword solution for the term 'CAPITAL POLISH' is EDIT, which is a four-letter word. EDIT is a verb that means to prepare something for publication or presentation by correcting, revising, or adapting it. It is often used in reference to editing a document, such as a book, article, or film. In the context of CAPITAL POLISH, it could refer to making changes to a city or country's capital in order to make it more attractive or appealing.