Moral (7)
'moral' is the definition.
(synonyms)
This is all the clue.
(Other definitions for ethical that I've seen before include "Conforming to accepted standards of behaviour" , "Morally right" , "Morally good or correct" , "In accordance with approved moral standards" , "Moral, honest" .)
'moral' is the definition.
(I've seen this before)
This is all the clue.
(Other definitions for ethic that I've seen before include "Moral rule" , "Moral principle" , "System of principles" , "Ideology" , "type of behaviour" .)