Crossword Genius

Italian score’s recently added for air (9)

Ross

I believe the answer is:

ventilate

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'for air' is the definition.
(synonyms)

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

Can you help me to learn more?

(Other definitions for ventilate that I've seen before include "Expose to a current of fresh air" , "Superficial" , "Fan" , "Allow fresh air to circulate" , "Let air enter and circulate" .)

I've seen this clue in The Times.
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