Medical operation (10)
I believe the answer is:
transplant
'medical operation' is the definition.
(I know that transplant is a type of medical operation)
This is all the clue.
(Other definitions for transplant that I've seen before include "Move from place to place" , "Lift and reset in another soil or situation" , "Change of heart" , "Transfer to another situation" , "Remove into new bed (or body?)" .)