Care for, medically (5)
I believe the answer is:
treat
'care for medically' is the definition.
(I've seen this before)
This is all the clue.
(Other definitions for treat that I've seen before include "could be a feast" , "Doctor, manage" , "Entertain and pick up the tab" , "Entertain - minister - free entertainment" , "Enjoyable surprise gift" .)