Related Clues:

• Use one's eyes
• Spotter's confirmation
• ''Check this out!''
• ''Take a gander!''
• Cry while pointing a finger
• Response to "Look!"
• “Check this out!”
• Have a gander
• Newsstand debut of 1937
• Reply to 'Look at that!'
• "Check it out!"
• "Thar she blows!"
• Life rival, once
• Spotter's words?
• Op art viewer's cry, maybe