Related Clues:

• ''Lights-out'' indicator
• ''Lights out'' signal
• Nominates
• Song at a military funeral
• Bugler's bedtime tune
• Base music
• Knocks lightly
• Base number
• Tune with only four distinct notes
• It's bugled on a base
• Eavesdroppers' equipment
• Army bugle call
• Bar fixtures
• Picks for a position
• Reveille counterpart