Small capitals top editor ruined (9)

I believe the answer is:

scuppered

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'ruined' is the definition.
Although both the answer and definition are past participle verbs, I don't understand how one could define the other.

'small capitals top editor' is the wordplay.
'small capitals' becomes 'sc' (abbreviation used in printing).
'top' becomes 'upper' (similar in meaning).
'editor' becomes 'ed' (abbreviation).
'sc'+'upper'+'ed'='SCUPPERED'

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I've seen this clue in The Daily Express.

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