The term 'BIG NAME IN FROZEN CHICKEN' can be summarized by the crossword solution 'TYSON' (5 letters). Tyson Foods is one of the largest producers of chicken, beef, and pork in the United States. Founded in 1935, the company has grown to become a major player in the food industry, with its products being sold in over 80 countries around the world. Tyson Foods is well-known for its frozen chicken products, which are widely available in grocery stores and restaurants.