The crossword solution for the term 'Dancing Duncan' is Isadora. Isadora was a famous dancer, choreographer, and teacher of the early 20th century. She is credited with being one of the inventors of modern dance, and her influence on the art form is still felt today. She was known for her unique style of improvisational movement and her use of costumes and props to create theatrical effects. Her most famous work was the ballet 'Rite of Spring, ' which premiered in 1913. Isadora Duncan was an important figure in the development of modern dance and her legacy continues to inspire dancers around the world.