Crossword Genius

A South American city so songlike (6)

Ross

I believe the answer is:

arioso

'songlike' is the definition.
(I've seen this in another clue)

'a south american city so' is the wordplay.
'south american city' becomes 'rio' (Rio de Janeiro in Brazil).
'a'+'rio'+'so'='ARIOSO'

(Other definitions for arioso that I've seen before include "Lyrical piece" , "piece of music is discovered" , "Song-like (Italian)" .)

I've seen this clue in The Telegraph.
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