Crossword Genius

Couples don’t start to have affectations (4)

Ross

I believe the answer is:

airs

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'affectations' is the definition.
(I've seen this before)

I cannot understand how the rest of the clue works.

Can you help me to learn more?

(Other definitions for airs that I've seen before include "Ventilates, say grievance" , "Broadcasts" , "Pretentiousness" , "feelings" , "Haughty affectation" .)

I've seen this clue in The Mirror.
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