Fashionable comedian, success (4-2)

I believe the answer is:

with-it

'fashionable' is the definition.
(thesaurus)

'comedian success' is the wordplay.
'comedian' becomes 'wit' (I've seen this before).
'success' becomes 'hit' (hit is a kind of success).
'wit'+'hit'='WITH-IT'

(Another definition for with-it that I've seen is " Trendy".)

I've seen this clue in The Telegraph.

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