Related Clues:

• When doubled, a David Merrick musical
• 'You said it!'
• 'O.K., why not?'
• Yes, at the altar
• 'My pleasure!'
• See 23-Across
• 'Indeed!'
• 'You can say that again!'
• 'Oh, why not?'
• Answer to a minister's question
• 'You betcha!'
• Words at the altar
• Promising words
• Swear words?
• Answer to 'Shall we?'