The crossword solution for the term 'PLAY WITH, AS CLAY' is 'KNEAD'. Kneading is a process of working clay with your hands to make it more malleable and easier to shape. It involves pressing, folding, and stretching the clay in order to make it softer and more pliable. Kneading is an important part of the process of working with clay, as it helps to ensure that the clay is evenly mixed and ready for use.