The term 'SON OF ZORN' is a reference to the American adult animated sitcom of the same name. The show follows the adventures of Zorn, an animated warrior from a faraway island in the Pacific Ocean, who returns to Orange County, California to win back his live-action ex-wife and teenage SON. The crossword solution for this term is 'SON', which is a three-letter word that refers to a male offspring or child.