Crossword Genius

Dagger mark ruins blouse (6)

Ross

I believe the answer is:

obelus

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

'ruins blouse' is the wordplay.
'ruins' is an anagram indicator.
'blouse' anagrammed gives 'OBELUS'.

'mark' acts as a link.

(Other definitions for obelus that I've seen before include "Dagger, in printing, to indicate a footnote" , "It indicates corruption!" , "Dagger-shaped mark" , "Dagger symbol" , "Printer's dagger" .)

I've seen this clue in The Globe and Mail.
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