The term 'Square-Ended Cigar' refers to a type of cigar that has a squared off end, as opposed to the traditional rounded end. The crossword solution for this term is 'CHEROOT, ' which is a type of cigar that originated in the Appalachian Mountains of the United States. It is made from a blend of different types of tobacco and is known for its strong flavor. The square-ended shape of the CHEROOT makes it easier to hold and smoke than other types of cigars.