Fundamental values (5)
I believe the answer is:
ethos
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">fundamental values</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 ethos that I've seen before include "Distinctive spirit - character" , "Distinctive spirit of an institution" , "Moral character" , "Characteristic culture of a culture or time" , "Distinctive group spirit" .)