Uncultivated area (10)
I believe the answer is:
wilderness
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">uncultivated area</span>' is the definition.<br/ ><span class="explanation-format__explanation">(I know that wilderness are uncultivated)</span><br/ ><br/ >This is the entire clue.<br/ ></span>
(Other definitions for wilderness that I've seen before include "for a time unrecognised" , "Inhospitable region" .)