The crossword solution for the term 'LONGFELLOW HEROINE' is Elsie, a five-letter word. Elsie is the heroine of Henry Wadsworth Longfellow's 1858 poem, 'The Courtship of Miles Standish'. The poem tells the story of a love triangle between Miles Standish, Priscilla Mullins, and John Alden, with Elsie as the daughter of Standish's friend, Alexander. Elsie is a symbol of innocence and purity in the poem, and her presence serves to remind the characters of their moral obligations.