Harms a remarkable Indian retreat (6)
I believe the answer is:
ashram
'indian retreat' is the definition.
'ashram' can be an answer for 'retreat' (type of religious retreat). I am unsure of the 'indian' bit.
'harms a remarkable' is the wordplay.
'remarkable' indicates an anagram.
'harms'+'a'='harmsa'
'harmsa' with letters rearranged gives 'ASHRAM'.
Can you help me to learn more?
(Other definitions for ashram that I've seen before include "holy man's retreat" , "Indian hermitage" , "Hindu place of retreat" , "Hindu retreat house" , "Guru's community" .)