Related Clues:

• Artist's medium
• Manet medium
• ... and its product
• Loosen up, maybe
• Olive or corn follower
• Lamp fuel
• Rembrandt painting
• Supply in Iraq
• OPEC commodity
• Vinegar partner
• Olive byproduct
• Light on a dashboard
• It's well-regulated
• Well-delivered product
• Try to loosen