The crossword solution for the term 'MAKE THE FLY' is FUR, which is a type of material made from the hair of animals such as sheep, goats, rabbits, and even foxes. It has been used for centuries to make clothing, blankets, and other items. FUR is also used in fly fishing, where it is tied onto a hook to create a realistic imitation of an insect or other small creature that fish may be attracted to.