The term TO AUTUMN POET is represented by three crossword solutions: KEATS (5 letters), YEATS (5 letters), and JOHNKEATS (9 letters). KEATS and YEATS refer to two of the most famous English poets of the 19th and 20th centuries, John Keats and William Butler Yeats. John Keats was an English Romantic poet who wrote 'To Autumn' in 1819. William Butler Yeats was an Irish poet and playwright who won the Nobel Prize in Literature in 1923.