The term 'WATER LILIES PAINTER' refers to the French Impressionist painter Claude Monet (1840-1926). Monet is best known for his series of paintings of water lilies, which he painted in his garden at Giverny. He was a leading figure in the Impressionist movement and his work has had a lasting influence on modern art. The crossword solutions for this term are MONET (5 letters) and CLAUDEMONET (11 letters).