Related Clues:

• Perch
• Command to Rover
• Settle
• Lab order?
• Error indicator
• Take a chair
• Order to attack, with 'on'
• Set a setter (on)
• Order to Fido
• Meet
• Canine command
• Convene
• Urge to attack, with 'on'
• '___ 'em, Rover!'
• [their mistake, not mine]