Hill or rocky peak (3)
I believe the answer is:
tor
<span class="explanation-format__ClueExplanation">This clue is a double definition.<br/ ><br/ >'<span class="explanation-format__original">hill</span>' is the first definition.<br/ ><span class="explanation-format__explanation">(tor is a kind of hill)</span><br/ ><br/ >'<span class="explanation-format__original">rocky peak</span>' is the second definition.<br/ ><span class="explanation-format__explanation">(a tor is a rocky hill)</span><br/ ><br/ ></span>
(Other definitions for tor that I've seen before include "High, rocky, bare hill" , "eminence" , "A rocky hill in Devon" , "Rocky outcrop" , "Rot on rocky peak" .)