Related Clues:

• "Go right, mule!"
• Exclamation in 17, 23, 50 and 61-Across
• "Oh my!"
• "No kidding!"
• Peking, e.g.
• Awed one's reaction
• Take the right course
• Right call
• “Wow!”
• "Holy cow!"
• Pawn or bishop
• ''You don't say!''
• Haw's counterpart
• 'Well, whaddya know!'
• 'Really?!'