Possible Clues:

• Former Soviet statesman
• Glasnost leader
• A piece from Grieg or Bach evoking an instrumental figure
• Last leader of the Soviet Union, d. August 2022
• Mikhail --, Soviet statesman whose foreign policy brought an end to the Cold War
• Good or bad at the start? Hurt very old head of state
• Russian statesman who introduced the liberalising 28As of glasnost and perestroika
• Soviet president who introduced glasnost and perestroika
• Whom Reagan told to ''tear down this WALL''
• Famous Russian composer in new edition of Grove