Kim leaves Himalayan state hospital a religious adherent (4)
I believe the answer is:
sikh
'religious adherent' is the definition.
(I've seen this before)
I don't understand the rest of the clue.
Can you help me to learn more?
(Other definitions for sikh that I've seen before include "Follower of a religion founded in Punjab" , "Turbanned believer" , "Follower of religion founded by Guru Nanak" , "Follower of a monotheistic Asian religion" , "someone in India?" .)