No ink is on spoilt paper (9)
I believe the answer is:
'paper' is the definition.
(type of thin paper)
'no ink is on spoilt' is the wordplay.
'spoilt' is an anagram indicator.
'noinkison' anagrammed gives 'ONIONSKIN'.
(Another definition for onionskin that I've seen is " Very thin variety of paper".)
I've seen this clue in The Times.
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