Transplant work (5)
I believe the answer is:
graft
I believe this is a double definition.
'transplant' is the first definition.
(I know that transplant can be written as graft)
'work' is the second definition.
(graft can mean to work hard)
(Other definitions for graft that I've seen before include "Transplant - hard work" , "Hard work; bribery" , "Surgical transplant" , "Hard work - corrupt profit" , "Make money from corruption" .)