More spacious but less safe hotel abandoned (6)

I believe the answer is:

airier

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'more spacious' is the definition.
(I've seen this in another clue)

I cannot understand how the rest of the clue works.

(Other definitions for airier that I've seen before include "Breezier" , "More spacious and better ventilated" , "More dismissive" .)

I've seen this clue in The Independent.

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