Related Clues:

• Tone color, in music
• Answering-machine sound
• Blush adds it
• Clock chime, e.g.
• Nasal speech quality
• Plucked string sound
• Phone message ender
• Voice mail sound
• Music quality
• Carpentry file
• Make a grating sound
• Stereotypical villain's voice
• Dial ___ (telephone sound)
• Mood clue
• Signal to begin speaking, perhaps