Silent comic ain't curt (8)

I believe the answer is:

taciturn

'silent' is the definition.
(taciturn means not saying much)

'comic ain't curt' is the wordplay.
'comic' indicates anagramming the letters.
'aint'+'curt'='aintcurt'
'aintcurt' is an anagram of 'TACITURN'.

(Other definitions for taciturn that I've seen before include "Habitually uncommunicative, saying little" , "Tending to silence" , "Tight-lipped" , "Talking little" , "withdrawn" .)

I've seen this clue in The Guardian.

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