Related Clues:

• Like some readers
• Foaming at the mouth
• Word for extremists
• Greedy
• Hungry for more
• All in
• More than just interested
• Extreme, as a fan
• Dyed-in-the-wool
• Devouring
• Like diehard rooters
• Like diehard fans
• Eager, plus
• Energized
• Fervent