Related Clues:

• Quaver, e.g.
• Marker
• Size up
• Bit of marginalia
• Do, re or mi, e.g.
• Horne solo
• It can fall flat
• Mention
• Put down
• Bill
• Short letter
• Mark
• 'Summertime,' e.g., in 'Porgy and Bess'
• Consider
• Acknowledge