Possible Clues:

• Soviet diplomat known for his 'cocktails'
• Type of cocktail losing crushed ice in shaky locomotive
• Former name (1940-57) of the Russian city of Perm
• ___ cocktail (explosive device)
• Horrible cocktail?
• Soviet minister gets second great deal over extracting erbium
• Soviet foreign minister 1939-1949, after whom a 'cocktail' is named
• Explosive cocktail type
• Potent cocktail name
• Soviet statesman’s action mostly restricting leader of our bunch