Rio de Janeiro shanty town, say (6)

I believe the answer is:

favela

(Other definitions for favela that I've seen before include "Shantytown in Brazil" , "(Brazilian) shack, shanty town; Alf, Eva (anag.)" , "Ramshackle town" , "Shanty town, especially in Brazil" , "Brazilian slum" .)

I've seen this clue in The Guardian.

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