The crossword solution for the term 'WIDE'S PARTNER' is FAR, which is a three-letter word. FAR is an adverb that means to a great degree or extent. It is often used in combination with other words to form phrases such as 'FAR and wide, ' which means to a great distance or area. In this case, it is being used to describe the partner of Wide, suggesting that the two are connected over a great distance.