The term 'smooth and shining' can be described by two crossword solutions: GLOSSY (6 letters) and WAXEN (5 letters). GLOSSY is an adjective that describes something as having a smooth, shiny surface. WAXEN is also an adjective that describes something as having a smooth, shiny surface, but with a slightly different connotation. It implies a more polished, waxy look. Both words are often used to describe the appearance of furniture, cars, and other objects.