The crossword solution for the term NEEDLE PARTNER is THREAD, which is a six-letter word. THREAD is a type of yarn or cord that is used in sewing and weaving. It is usually made from natural or synthetic fibers, and it is used to stitch fabric together. THREAD is an essential part of any sewing project, as it is used to secure the fabric pieces together. Needles and THREAD are often used together, with the needle pushing the THREAD through the fabric.