Of course, seasoned style is flowing (8,2,3)

I believe the answer is:

needless to say

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

'seasoned style is flowing' is the wordplay.
'is flowing' is an anagram indicator.
'seasoned'+'style'='seasonedstyle'
'seasonedstyle' anagrammed gives 'NEEDLESS TO SAY'.

(Another definition for needless to say that I've seen is " Of course".)

I've seen this clue in The Times.

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