Works hard to get transplants (6)
I believe the answer is:
grafts
I believe this is a double definition.
'works hard' is the first definition.
(I've seen this before)
'transplants' is the second definition.
('graft' can be a synonym of 'transplant')
'to get' is the link.
(Other definitions for grafts that I've seen before include "Tree implants or corrupt business practices" , "Works hard; transplants" , "Shoots from one plant fixed into another" , "Splices or joins plant shoots together" .)