Party night in German province (8)

I believe the answer is:

connacht

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'province' is the definition.
(I know that Connacht is a Provinces of Ireland)

'party night in german' is the wordplay.
'party' becomes 'con' (abbreviation for Conservative Party).
'night in german' becomes 'nacht' (I am not sure about this - if you are sure you should believe this answer much more).
'con'+'nacht'='CONNACHT'

Can you help me to learn more?

(Another definition for connacht that I've seen is " Irish province".)

I've seen this clue in The Times.

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