Where to find some Peruvian desperadoes? (5)
I believe the answer is:
andes
'where to' is the definition.
Although both the answer and definition are singular nouns, I don't see how one could define the other.
'some peruvian desperadoes?' is the wordplay.
'some' indicates the answer is hidden within the clue (some of the parts of the word are used).
'ANDES' can be found hidden inside 'peruvian desperadoes'.
'find' is the link.
(Other definitions for andes that I've seen before include "Mountains for the Danes, oddly" , "Great mountains of western S America" , "South American mountain chain" , "Great S American mountains" , "South American mountain system" .)