Related Clues:

• Catherine, for one
• Fairy ___
• Sovereign
• Pageant winner
• Outcome of many a chess promotion
• Catherine the Great, e.g.
• RULER
• Hive's head
• You may use it to do your checking
• Alexandra, for one
• Ruler of a hive
• Certain head of state
• Catherine, notably
• Monarch
• Chess piece