Mountains in Patagonian Desert (5)

I believe the answer is:

andes

'mountains' is the definition.
(I've seen this before)

'in patagonian desert' is the wordplay.
'in' says the answer is hidden in the clue.
'ANDES' is hidden within 'patagonian desert'.

(Other definitions for andes that I've seen before include "South American mountain range" , "The range of llamas?" , "Danes seen in mountains" , "Great S American mountains" , "Mountains for the Danes, oddly" .)

I've seen this clue in The Telegraph.

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