Rough, rugged (6)
I believe the answer is:
craggy
<span class="explanation-format__ClueExplanation">I believe this clue is a double definition.<br/ ><br/ >'<span class="explanation-format__original">rough</span>' is the first definition.<br/ ><span class="explanation-format__explanation">(similar in meaning)</span><br/ ><br/ >'<span class="explanation-format__original">rugged</span>' is the second definition.<br/ ><span class="explanation-format__explanation">(synonyms)</span><br/ ><br/ ></span>
(Other definitions for craggy that I've seen before include "Rocky and steep" , "Hilly; rugged" , "Mountainous" , "with rough faces" , "Weather-beaten" .)