Crossword Genius

Edit perhaps, so to punctuation marks (11)

Ross

I believe the answer is:

apostrophes

'punctuation marks' is the definition.
(apostrophe is a kind of punctuation mark)

'edit perhaps so to' is the wordplay.
'edit' indicates an anagram (I've seen 'edited' mean this).
'perhaps'+'so'+'to'='perhapssoto'
'perhapssoto' is an anagram of 'APOSTROPHES'.

I've seen this clue in The Daily Express.
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