Language bores actor terribly (5,5)

I believe the answer is:

serbo croat

'language' is the definition.
(I've seen this before)

'bores actor terribly' is the wordplay.
'terribly' indicates an anagram.
'bores'+'actor'='boresactor'
'boresactor' is an anagram of 'SERBO-CROAT'.

(Another definition for serbo croat that I've seen is " Foreign language".)

I've seen this clue in The Daily Express.

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