The crossword solution for the term 'POPULAR RED' is CAB. CAB is a type of red wine that is popular among many wine drinkers. It is made from Cabernet Sauvignon grapes, which are known for their dark color and intense flavor. CAB is often used in blends with other red wines to create a more complex flavor profile. It is also a popular choice for pairing with food, as its bold flavor can stand up to many dishes.