Related Clues:

• Word preceding 20-Across
• Only
• 'Excuse me...'
• 'Um, pardon me'
• Start of a break-in
• 'Pardon me ...'
• ''May I speak?''
• 'Did you forget about me?'
• 'Excuse me ...'
• Attention-seeking utterance
• Pardon me!
• Objector's beginning
• "Can I get a word in?"
• On the other hand
• Interjection to interrupt