Dance it takes two to do, they say (5)

I believe the answer is:

tango

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'dance' is the definition.
(tango is a type of dance)

I cannot understand how the rest of the clue works.

(Other definitions for tango that I've seen before include "Dance music" , "something seen in ballroom?" , "Movement from Argentina" , "South American dance (for two?)" , "uniform to follow" .)

I've seen this clue in The Globe and Mail.

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