Related Clues:

• Bird food
• Drilling goal
• Acorn, essentially
• It can be hydrogenated
• Plant product
• Iraqi resource
• Sunflower seed product
• Beachgoer's aid
• It's often lower than dirt
• Open position?
• Propagative part of a plant
• Energy source
• Sesame product
• 'Mona Lisa,' for one
• Crude substance?