Dangerous to leave hotel, which is spacious (4)

I believe the answer is:

airy

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

I can't explain the rest of the clue.

(Other definitions for airy that I've seen before include "Spacious; delicate" , "Well ventilated; insubstantial" , "Well ventilated; nonchalant" , "Delicate, casual" , "Fanciful" .)

I've seen this clue in The Guardian.

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