The crossword solution for the term 'Painter, Grandma ___' is MOSES (5 letters). MOSES was an American painter and sculptor who was born in 1912. He was known for his abstract expressionist paintings and sculptures, which often featured bold colors and geometric shapes. He was also a prominent figure in the New York art scene during the 1950s and 1960s. His work has been exhibited in numerous galleries and museums around the world.