Related Clues:

• Aficionado, informally
• Giant fan
• Filled with enthusiasm
• Bonbon center
• Bolt connector
• Like an eager beaver
• Like true fans
• Evil sort
• Cost of business, informally
• Dastardly sort
• Hard fruit
• Devilish one
• Hardly reluctant
• Ardent, as some collectors
• Like a 6-Down