Related Clues:

• Mood clue
• Signal to begin speaking, perhaps
• Coloration quality
• *Musical quality
• Mute, with 'down'
• Speech subtlety
• TV color adjustment
• Sculpt, at the gym
• Time signal, maybe
• Normal elasticity
• Muscle or musical quality
• A kid may be told to watch it
• Vocal quality
• The sound of music
• Firm up, as muscles