Peruvian peaks (5)
I believe the answer is:
andes
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">peruvian peaks</span>' is the definition.<br/ ><span class="explanation-format__explanation">(I've seen this in another clue)</span><br/ ><br/ >This is all the clue.<br/ ></span>
(Other definitions for andes that I've seen before include "Mountain range in South America" , "World's longest mountain range" , "A geographical feature" , "Peak District" , "Major mountain range" .)