Possible Clues:

• It's beautiful and good to look at us about eighteen!
• Internal organ producing urine
• Organ at back of abdomen
• Glandular organ that removes waste matter from blood
• Not celebrated, and not dealt with by 6 down either
• Excreting organ
• Bean type or shape
• Character of body part
• Organ tonality includes one reed’s lowest note
• Personal data not originally kept by important organ