The term 'Block and Tackle Part' refers to the components of a block and tackle system, which is a type of PULLEY system used to lift heavy objects. The crossword solutions for this term are PULLEY (6 letters), LURE (4 letters), HOISTS (6 letters), and HOIST (5 letters). A PULLEY is a wheel with a groove in it that is used to change the direction or magnitude of a force applied to a rope or cable. A LURE is an object used to attract fish, usually attached to a fishing line. HOISTS are machines used to lift and lower heavy objects, and a HOIST is a single unit of a hoisting system.