The term 'IT MAY HOLD THE LINE' can be solved by the crossword solutions of 'POLE' (4 letters) and 'ROD' (3 letters). A POLE is a long, thin, and usually cylindrical object that is used for a variety of purposes. Poles are often made of wood, metal, or plastic and can be used to support structures, such as tents, flags, and power lines. A ROD is a straight, slender stick or bar that is typically made of metal, wood, or plastic. Rods are commonly used in construction, fishing, and other activities. Both poles and rods can be used to hold a line in place, such as a rope or wire.