Answer: yeltsin

AnswerCrossword Clue
YELTSINMuscovite of note
YELTSINHe put in Putin
YELTSINPutin's predecessor
YELTSINRussia's first president
YELTSIN1997 Helsinki summit participant
YELTSINBush's START II cosigner
YELTSINGorbachev successor
YELTSINPutin predecessor
YELTSINGorbachev's successor