Related Clues:

• 'Let me demonstrate …'
• Watch over
• Police
• Emulate a police officer
• Sentry's stint
• Scout unit
• Sentry's duty
• Enjoy a TV show
• Policeman's assignment
• Fob contents
• See 69-Down
• Paul Revere's midnight duty
• Timepiece
• Common retirement gift
• Wrist timer