Crossword Genius

Unfriendly party at ancient city (4)

Ross

I believe the answer is:

dour

'unfriendly' is the definition.
(thesaurus)

'party at ancient city' is the wordplay.
'party' becomes 'do' (do can informally mean a party).
'at' says to put letters next to each other.
'ancient city' becomes 'ur' (ancient Sumerian city state).
'do'+'ur'='DOUR'

(Other definitions for dour that I've seen before include "Gloomy-looking and forbidding" , "Sullen - unyielding" , "Gloomy-looking, stern" , "Lugubrious, grim" , "Grim and gloomy-looking" .)

I've seen this clue in The Mirror.
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