The crossword solution for the term 'Prop for Willy Wonka' is CANE, which is a four-letter word. Willy Wonka is a fictional character from the 1964 novel Charlie and the Chocolate Factory by Roald Dahl. In the 1971 film adaptation of the novel, Willy Wonka is portrayed by Gene Wilder and is often seen carrying a CANE. The CANE serves as a prop to emphasize his eccentricity and is a symbol of his power and authority.