- - Red flag's purpose
- - Paul Revere's midnight duty
- - Siren's function
- - Warning triangle represented
- - relating how they were causing us to be vigilant
- - Warning triangle, possibly
- - Notifying
- - Warning of drink round around time
- - Giving a heads-up to
- - Emulating Paul Revere
- - 39-Across of 46-Across
- - Tipping off
- - Sounding the alarm
- - Putting on guard
- - Guard duty
- - Warning
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