Related Clues:

• Hard-core
• Filled with enthusiasm
• Loud, as a stadium crowd
• Like an eager beaver
• Like true fans
• Let out ___ (bellow)
• Hardly reluctant
• Ardent, as some collectors
• Like a 6-Down
• Vociferous
• Not blasé
• Like a crowd after a home-team touchdown
• Like thundering crowds
• Beyond eager
• Like excited fans