The term IT SMOOTHS THINGS OVER can be solved by the four-letter word 'IRON'. IRON is a chemical element that is used in many different ways. It is a common material used to make tools, weapons, and other objects. It is also used in the production of steel, which is a strong and durable metal alloy. In addition, IRON is used to smooth out wrinkles in fabrics, making it an ideal tool for smoothing things over.