Maintained in an unaltered condition (9)
I believe the answer is:
preserved
'maintained in an unaltered condition' is the definition.
(I've seen this before)
This is all the clue.
(Other definitions for preserved that I've seen before include "Maintained in an unaltered condition" , "Prevented from decaying or spoiling" , "Kept in an unaltered condition" , "Prevented from decay" , "Kept safe from harm" .)