Related Clues:

• It's below the mantle
• Cardamom or chickpea
• Central part
• Geological sample
• Bird food
• Heart and soul
• Acorn, essentially
• Delicious leftover?
• Plant product
• Middle earth?
• Granny Smith's heart
• It's often lower than dirt
• Open position?
• Propagative part of a plant
• Sesame product