Related Clues:

• Loosen, in a way
• Painter's medium
• Mettle
• Breast beater
• 'Damn Yankees' tune
• Soul mate?
• Crankcase contents
• Heat source
• ''The Wizard of Oz'' prop
• O?
• Certain cartel's concern
• Courage
• Well-supplied resource?
• Tin Man's accessory
• Barrel contents