Related Clues:

• Speak up, really
• Sidelines cheer
• Loud call
• Vociferate
• Shouts
• Talk tempestuously
• Makes oneself heard
• (K) Shout out
• Tries to reach the hard of hearing
• Blasts out
• Cheerleader's bit
• Howl
• Rebel follower
• Long-distance calls?
• Raise one's voice