Mark Twain hero (3,6)
I believe the answer is:
tom sawyer
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">mark twain hero</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 tom sawyer that I've seen before include "Mark Twain character" , "American boy" , "book's hero" , "Mark Twain's adventurous boy" , "Boy whose Adventures were recorded by Mark Twain" .)