Introduced to Dominican a standard game (7)

I believe the answer is:

canasta

I'm a little stuck... Click here to teach me more about this clue!

'game' is the definition.
(I know that Canasta is a type of game)

'introduced to dominican a standard' is the wordplay.
'CANASTA' is hidden in amongst the letters.
However, I am not sure how this is indicated.

Can you help me to learn more?

(Other definitions for canasta that I've seen before include "Two-pack card game" , "Can a staff cook stomach game?" , "Card game like rummy" , "Card game -- as an act (anag)" , "series of hands" .)

I've seen this clue in The Sun.

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