Give medical care to (5)
I believe the answer is:
treat
'give medical care to' is the definition.
(I've seen this before)
This is all the clue.
(Other definitions for treat that I've seen before include "Care for medically" , "Pay for - minister to - deal with" , "Give care to; surprise gift" , "Try to heal" , "Entertain at one's own expense" .)