Takes pen to rewrite online language? (8)

I believe the answer is:

netspeak

'online language?' is the definition.
(language used on the internet)

'takes pen to rewrite' is the wordplay.
'to rewrite' indicates an anagram (I've seen 'rewriting' mean this).
'takes'+'pen'='takespen'
'takespen' is an anagram of 'NETSPEAK'.

(Another definition for netspeak that I've seen is " language in online discussion?".)

I've seen this clue in The Times.

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