Related Clues:

• Over-the-hill mount
• Nephrite or jadeite
• Equine loser
• Henpeck
• Figurine material
• Old horse
• Bother persistently
• Become weary
• Bother a lot
• Backseat driver, e.g.
• Vex
• Prey on one's mind
• Pick, pick, pick
• Gemstone
• Complain constantly