Knotty, twisted (7)
I believe the answer is:
gnarled
<span class="explanation-format__ClueExplanation">I believe this is a double definition.<br/ ><br/ >'<span class="explanation-format__original">knotty</span>' is the first definition.<br/ ><span class="explanation-format__explanation">(synonyms)</span><br/ ><br/ >'<span class="explanation-format__original">twisted</span>' is the second definition.<br/ ><span class="explanation-format__explanation">(gnarling is a kind of twisting)</span><br/ ><br/ ></span>
(Other definitions for gnarled that I've seen before include "Knobbly and twisted (of wood)" , "Old, twisted, and weathered" , "Rugged" , "Knotty" , "Covered with knobs or knots, tree say" .)