Horse control is a term used to describe the practice of controlling a horse's movements and behavior with the use of reins. The term can also refer to the equipment used to control a horse, such as a bridle or halter. The crossword solution for the term 'horse control' is REIN, which is a type of strap or rope used to control a horse. Reins are usually attached to a bridle or halter and are used to guide and direct the horse.