The crossword solutions for the term ONE-TIME BELGRADE BIGGIE is TITO, which stands for Josip Broz Tito, the former Yugoslavian leader. Tito was a revolutionary leader who served as the President of Yugoslavia from 1953 to 1980. He was known for his strong leadership and his ability to maintain peace in the region during the Cold War. He was also a major figure in the Non-Aligned Movement, which sought to remain neutral in the conflict between the United States and the Soviet Union. Tito's death in 1980 marked the end of an era in Yugoslavia, and he remains a beloved figure in the region today.