Related Clues:

• Sustainability prefix
• Type of ID or fee
• PC programmer
• Smartphone owner
• -friendly
• 'The Prague Cemetery' author, 2010
• Prefix denoting concerned with habitat and environment of living organisms
• He employs American to precede the queen
• Drug addict (colloq.)
• It's sure to upset a drug addict
• Ruse (anag.)
• Umberto - - , novelist
• Conniving ruse of a drug-addict
• A person exercising requires some house-room
• One employs you and me hesitantly