Dogmatist (5)
I believe the answer is:
bigot
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">dogmatist</span>' is the definition.<br/ ><span class="explanation-format__explanation">(I've seen this before)</span><br/ ><br/ >This is all the clue.<br/ ></span>
(Other definitions for bigot that I've seen before include "Racist or sexist?" , "sectarian" , "Intolerant type" , "One is prejudiced and intolerant" , "Fanatic" .)