The term 'ballet slipper' is a type of shoe worn by dancers in ballet performances. It is also known as a toe shoe, which is a seven-letter word that can be used to solve the crossword puzzle. The ballet slipper is designed to provide support and flexibility for the dancer's feet while allowing them to move freely. It is usually made of soft leather or canvas and has a thin sole. The ballet slipper is an essential part of a dancer's wardrobe and is often decorated with ribbons or other embellishments.