Study of morals (6)
I believe the answer is:
ethics
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">study of morals</span>' is the definition.<br/ ><span class="explanation-format__explanation">(I've seen this in another clue)</span><br/ ><br/ >This is all the clue.<br/ ></span>
(Other definitions for ethics that I've seen before include "Codes of standards in business" , "Motivation based on ideas of right and wrong" , "Itches (anag)" , "Code of behaviour" , "Codes of behaviour for professional people" .)