Related Clues:

• One fifth of an ABBA hit
• '@#$%!,' e.g.
• Solemn wedding words
• Swearing-in highlight
• Rite answer?
• Court oath
• 'If ___ say so myself'
• Altar affirmative
• Swearing-in pledge
• Inauguration recitation
• Start for a union?
• See 29-Across
• Common oath
• Words often exchanged
• Conclusion of a singles match?