Huck of fiction
I believe the answer is:
finn
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">huck of fiction</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 finn that I've seen before include "Huckleberry - -" , "hero in American adventures" , "Someone from Turku" , "hero of American fiction" , "Sibelius, perhaps" .)