Related Clues:

• Prefix with "friendly"
• Green (Pref.)
• "It's not easy bein' __": Kermit's lament
• He wrote ''The Name of the Rose''
• Prefix for terrorism
• Prefix for friendly
• Logical lead-in
• Nature prefix
• Piedmont-born author
• -- -friendly (green)
• Prefix with tour
• ''Foucault's Pendulum'' author Umberto
• ''Green'' prefix
• ''The Name of the Rose'' novelist
• Non-polluter's prefix