This land's danger - corrupting our acceptable means of communication (8,7)

I believe the answer is:

standard english

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'this land's danger corrupting our' is the definition.
The definition suggests a singular noun which matches the answer.

'acceptable means of communication' is the wordplay.
'acceptable' becomes 'standard' ('standard' can be similar in meaning to 'acceptable').
'means of communication' becomes 'english' (I am not sure about this - if you are sure you should believe this answer much more).
'standard'+'english'='STANDARD ENGLISH'

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I've seen this clue in The Telegraph.

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