The term 'Harness for Oxen' is a type of equipment used to attach two oxen together in order to pull a cart or plow. The crossword solution for this term is 'YOKE', which is a U-shaped wooden beam that is placed around the necks of two oxen and fastened with straps and buckles. This allows the oxen to be connected and work together, allowing them to pull heavier loads than they could on their own.