Radical (5)
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">radical</span>' is the definition.<br/ ><span class="explanation-format__explanation">(extremist is a kind of radical)</span><br/ ><br/ >This is all the clue.<br/ ></span>
(Other definitions for extremist that I've seen before include "Revolutionary" , "One far from moderate" , "One with highly non-standard views" , "immoderate person" , "One with views far from the mainstream" .)
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">radical</span>' is the definition.<br/ ><span class="explanation-format__explanation">(synonyms)</span><br/ ><br/ >This is the entire clue.<br/ ></span>
(Other definitions for ultra that I've seen before include "holding extreme position" , "Prefix meaning extreme or excessive" , "Secret intelligence" , "lacking moderation" , "(One who is) extreme (in eg political opinion)" .)
(Other definitions for epic that I've seen before include "On a grand scale like long poem" , "Surpassing the ordinary" , "Long poem/story" , "Confirm the truth of" , "Heroic; saga" .)
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">radical</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>
(Another definition for left-wing that I've seen is " Socialist".)