Related Clues:

• Relative of 55-Across
• Woeful word
• Word of resignation
• Cry of despair
• Wistful word
• 'Naughty, naughty!'
• Cry for what might have been
• 'Naughty!'
• Word said with a tear
• Sound of disapproval
• 'Bad!'
• 'Oh, were it not true!'
• Word of regret
• 'Ah, me!'
• 1960 Everly Brothers hit