Danes destroyed mountain range (5)
I believe the answer is:
andes
'mountain range' is the definition.
(Andes is an example)
'danes destroyed' is the wordplay.
'destroyed' indicates an anagram.
'danes' with letters rearranged gives 'ANDES'.
(Other definitions for andes that I've seen before include "danes found in mountains" , "South American mountains" , "Great mountains of western S America" , "Danes in S American mountains" , "Mountain range in South America" .)