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