Related Clues:

• First lights
• Becomes clear
• Crowing times
• Grows brighter
• "... by the ___ early light ..."
• Sunup times
• Becomes evident
• Eighth word of "The Star-Spangled Banner"
• Emerges
• "By the ___ early light ..."
• Daily events
• Starts to shed light
• Shows itself
• Suddenly occurs to, with "on"
• Breaks of day