Related Clues:

• Wayne's ''___ Grit''
• 'No fooling!'
• Sinus ending
• Fifty-fifty test choice
• Shade of blue?
• "No argument here"
• 'Granted ...'
• Beyond reproach
• "Oh, really?"
• One of two test choices
• In perfect alignment
• ''I'm not kidding!''
• Opposite of false
• Undisputed
• Reply to 'that a fact?' (4)