The crossword solution for the term 'It's a Cover-up' is 'ROBE', which is a four letter word. A ROBE is a loose-fitting outer garment, typically worn over nightwear or other clothing. It is usually made of a soft and comfortable material such as cotton, silk, or velvet. Robes are often used to cover up one's body in order to keep warm or to provide modesty. They are also commonly used in religious ceremonies and rituals.