The 1815 Austen novel referred to in the crossword solution is 'Emma'. It is a novel by the English author Jane Austen, first published in December 1815. The novel follows the protagonist Emma Woodhouse, a wealthy young woman living in the fictional village of Highbury. Emma is described as a 'handsome, clever, and rich' young woman who has an eagerness for matchmaking. The novel explores themes of romance, class, and social status.