Related Clues:

• Lose one's nerve
• Go on and off, as a traffic light
• Kind of light
• Go on and off, as a light
• Photographer's light
• Flip one's lid?
• Disco pulser
• It's flashy
• Light source
• Flash light?
• Miss the action, maybe
• It won't go on for long
• Flashing light
• Lose a staring contest
• Disco light