Related Clues:

• The sound of the sound of the horse when it refuses (3)
• On the contrary, that sounds like a horse
• No, that sounds hoarse
• Sounds as if the horse is refusing like this
• "Aye" canceler
• Opposite of 30-Down
• Anti's cry
• A voiced vote
• Not just that but
• 'No' voter
• Negative response
• No - a negative vote
• Negative (archaic)
• In point of fact — a parliamentary vote against
• Aye offset