Related Clues:

• Greek Muse
• Muse of love sonnets
• Troubadour's Muse
• Calliope relative
• Sibling of Clio
• Prize in the ad biz
• Ad agency award
• Pitching award?
• One of nine sisters of Greek myth
• Urania's sibling
• Bard's inspiration, perhaps
• One of nine Muses
• Classical lyre holder
• Muse for Yeats
• Bard's muse