Ethically indifferent (6)
I believe the answer is:
amoral
'ethically indifferent' is the definition.
(I've seen this in another clue)
This is the entire clue.
(Other definitions for amoral that I've seen before include "regardless of what's right or wrong" , "Lacking principles" , "unconcerned about ethics" , "Without sense of right and wrong" , "Lacking spiritual values" .)