Blasphemy (6)
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">blasphemy</span>' is the definition.<br/ ><span class="explanation-format__explanation">(I've seen this before)</span><br/ ><br/ >This is the entire clue.<br/ ></span>
(Other definitions for heresy that I've seen before include "Opinion contrary to accepted religious beliefs" , "refusal to conform" , "Unorthodox religious opinion" , "Unorthodox doctrine" , "The wrong idea" .)
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">blasphemy</span>' is the definition.<br/ ><span class="explanation-format__explanation">(thesaurus)</span><br/ ><br/ >This is all the clue.<br/ ></span>
(Other definitions for imprecation that I've seen before include "anathema" , "Bad language" , "Spoken curse" , "blast?" .)