Evidently dubious penalty: about time! (8)

I believe the answer is:

patently

'evidently' is the definition.
('patently' can be a synonym of 'evidently')

'dubious penalty about time' is the wordplay.
'dubious' is an anagram indicator.
'about' indicates putting letters inside.
'time' becomes 't'.
'penalty' is an anagram of 'patenly'.
'patenly' placed around 't' is 'PATENTLY'.

(Another definition for patently that I've seen is " Obviously".)

I've seen this clue in The Times.

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