The suburb of Paris one may have landed in (4)

I believe the answer is:

orly

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'the suburb of paris' is the definition.
(I've seen this in another clue)

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

(Other definitions for orly that I've seen before include "Parisian airport" , "Paris airport" , "French airport" .)

I've seen this clue in the Evening Standard.

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