Party outside hotel, a lot of work? (2-4)

I believe the answer is:

at-home

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But I can't explain it at all! Could you help me understand?

(Other definitions for at-home that I've seen before include "Available to visitors, quite comfortable" , "Not out, available for visit" , "In to callers" , "Comfortable - in one's own country" , "Former Italian currency" .)

I've seen this clue in The Guardian.

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