American rodent (6)
I believe the answer is:
gopher
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">american rodent</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 gopher that I've seen before include "mine" , "biblical wood" , "skilled digger" , "Method of teaching reading by sounds" , "small animal" .)