Possible Clues:

• Annan of the UN
• Annan of the United Nations
• Actor Siriboe of 'Queen Sugar'
• Annan in Ghanaian history
• First name in U.N. diplomacy
• First name at the U.N
• Boutros's successor at the United Nations
• First name at the U.N., once
• Nobel Peace Prize winner Annan
• Former U.N. head Annan