Related Clues:

• Engineering sch.
• STOP or YIELD
• Hardware repairer
• Coach's gesturing
• Eight bells, maybe
• Time for lunch, for many
• Twelve o'clock, half the time
• Finish up the paperwork
• Lunchtime, maybe
• Midnight's opposite
• Exit indicator
• Coach's cue, e.g.
• Wild West shootout time
• 'It's a ___'
• Horoscope heading