The term 'CLIPPER PARTS' can be broken down into two crossword solutions: MASTS (5 letters) and SAILS (5 letters). MASTS are the tall, vertical poles that support the sails of a clipper ship. Sails are the large pieces of fabric that are attached to the MASTS and used to catch the wind and propel the ship forward. Together, MASTS and sails are essential components of a clipper ship, allowing it to move quickly and efficiently across the water.