Stone landmark (5)
I believe the answer is:
cairn
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">stone landmark</span>' is the definition.<br/ ><span class="explanation-format__explanation">(I've seen this in another clue)</span><br/ ><br/ >This is the entire clue.<br/ ></span>
(Other definitions for cairn that I've seen before include "dog" , "Heap of stones as a monument" , "Heap of stones - terrier" , "Burial mound" , "simple grave marker" .)