Prayer interrupted by depraved dance (7)

I believe the answer is:

lambada

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'dance' is the definition.
(Brazilian dance)

I don't understand how the rest of the clue works.

(Other definitions for lambada that I've seen before include "rhythmic Latin American dance" , "Latin-American dance" , "Fast Brazilian 3 dn" , "Fast Brazilian dance - mad Baal (anag)" , "number of Brazilian revellers" .)

I've seen this clue in The Telegraph.

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