The term 'CERTAIN LEG' can be solved by the crossword solution 'DRUMSTICK'. A DRUMSTICK is a type of percussion instrument used to strike a drum or other similar instrument. It is typically made of wood, but can also be made of plastic or metal. Drumsticks are held in one hand and used to strike the drumhead or cymbal in order to produce sound. Drumsticks are essential for playing drums and other percussion instruments.