Related Clues:

• Muse for Keats
• Greek Muse of astronomy
• Muse with Clio, Thalia and Urania
• She had one hyacinth and the Greeks called her a muse
• Clio and Urania's sister
• Pindar's Muse
• Madison Avenue prize
• Old city articles include one astronomy muse
• Woman on the US Naval Observatory's seal
• Muse for Millay
• Sister of 35-Across
• Award for 21-Across
• Muse fast penning letter, finally
• Verse writer's Muse
• Greek muse of lyric poetry