Is missing Saudi boarding stylish coach? (9)

I believe the answer is:

charabanc

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'coach?' is the definition.
('charabanc' can be a synonym of 'coach')

I can't explain the remainder of the clue.

(Other definitions for charabanc that I've seen before include "Old vehicle" , "Early coach" , "E.g. transport" , "An ABC arch (anag) - early excursion bus" , "Old tourist coach" .)

I've seen this clue in The Independent.

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