Related Clues:

• 63-Across, for one
• Stallion, for one
• Stallion or mare
• "Giddyup!" obeyer
• Silver in old Westerns
• Equus, in English
• Saddled beast
• Contender in the Belmont
• Plains animal
• Animal providing
• Domesticated animal
• This common sense is of equine origin
• That's cold, by the sound of it
• One might 14 across and sound rough
• It may have power and sounds husky