Related Clues:

• "Shucks!"
• "Go right, mule!"
• "You gotta be kidding!"
• Exclamation in 17, 23, 50 and 61-Across
• "Oh my!"
• "Amazing!"
• "No kidding!"
• Awed one's reaction
• Take the right course
• Right call
• "Holy cow!"
• ''You don't say!''
• Haw's counterpart
• 'Well, whaddya know!'
• Cry of exasperation