Possible Clues:

• U.S.S.R.'s successor
• '-- for Cookie' ('Sesame Street' tune)
• Successor to the USSR
• Opposite of trans-
• Grafton's "___ for Corpse"
• "___ for Cookie, that's good enough for me..."
• '___ for Cookie, that's good enough for me...'
• USSR today
• Opposite of trans-, with respect to gender
• Post-cold war inits