The first part of the clue is a body part, the answer to the second part of the clue is an anagram of the first word. Ex: Human trunk (torso) found at base of plants (roots).
-1. Reproductive organs committing theft. 8 letters each
-2. Chest becomes most naked. 6
-3. Digestion happens in Louis Armstrong's nickname. 7
-4. Pumps blood to home planet. 5
-5. Backbone becomes male organ. 5 (both words are body parts)
6. Pelvis joins legs on a sea vessel. 4
-7. Arm joint transplanted for intestine. 5 (both words are body parts)
-8. Proboscis last for ages. 4
-9. Off the top of your head comes applause. 5
-10. Thinking organ for Scottish child. 5