What every body has is seen with no body? (8)
I believe the answer is:
skeleton
'body?' is the definition.
(thesaurus)
I don't understand the remainder of the clue.
Can you help me to learn more?
(Other definitions for skeleton that I've seen before include "The smallest possible number" , "Possibly key" , "Basic scheme" , "Bony framework" , "structure as basis" .)