Related Clues:

• Polite assent
• Laterally
• Covert comment
• ''All kidding ___ ...''
• Theater comment
• Polite agreement
• To the left or right
• Dialogue that breaks the fourth wall
• House address
• Stage mutter
• Private aye?
• Parenthetical script comment
• Private line?
• Muttered mot
• Whispered word