Related Clues:

• KGB's milieu
• Russia, on old maps
• Initialism in a Beatles title
• Secret service buried in old city by former partners in east
• Empire until '91
• Letters in old atlases
• Khrushchev's land, for short
• Cold War-era state: Abbr
• The Beatles went back to it
• Vladimir Kuts had this on his vest
• The Beatles went back in it
• Winners of the first Euro final in 1960
• Valeriy Borzov had this on his vest
• Old country manors — such retro houses!
• 37-Across was the smallest one: Abbr