Related Clues:

• Secretly monitor
• Check — lizard
• Keep tabs on; lizard
• Lizard lays egg in heath
• Study in The Observer
• Watch car touring Northern Ireland
• Watch car outside up at home
• Watch with a webcam, perhaps
• Watch stealthily
• Keep watch on idiot in Othello, for one
• Track large lizard
• Secretly surveil
• Keep an eye on large lizard
• Regulator into lowering current a little in Missouri River
• Keep an eye on reptile