The crossword solution for the term 'Rolling Stones Lack It' is MOSS, which is a four letter word. MOSS is a type of small flowerless plant that typically grows in clumps or mats in damp or shady locations. It is commonly found in many parts of the world and is often used as a decorative element in gardens and landscapes. The Rolling Stones lack this type of plant, which could be interpreted as a metaphor for something they are missing in their lives.