The crossword solution for the term GREAT SCATTER is ELLA, which is a four letter word. Ella Fitzgerald was an American jazz singer and songwriter who was often referred to as the 'First Lady of Song' and 'Queen of Jazz'. She was known for her improvisational scat singing, which is a vocal technique that involves singing nonsense syllables instead of words. This technique is also known as 'Great Scatter', which is why it was used as a crossword solution.