The term Windsor in the crossword puzzle is solved by the words 'KNOT' and 'TIE'. The Windsor KNOT is a type of necktie KNOT that was popularized by the Duke of Windsor, who was King Edward VIII of England before he abdicated the throne. It is a wide, triangular KNOT that is symmetrical and requires more fabric than other knots. The Windsor KNOT is often used for formal occasions and is considered to be a more sophisticated KNOT than the standard four-in-hand KNOT.