The term 'GANGSTER COVERING' can be solved by the crossword solution 'HOOD', which is a four-letter word. A HOOD is a type of clothing that covers the head and neck, and is often associated with gangsters. It is typically made of a heavy fabric such as wool or cotton, and is usually worn to protect against the cold or rain. In popular culture, hoods are often associated with criminals and gangsters, and are seen as a symbol of power and intimidation.