Crossword Genius

One mill in ruins is a bad sign (3,4)

Ross

I believe the answer is:

ill omen

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

'one mill in ruins' is the wordplay.
'in ruins' indicates an anagram.
'one'+'mill'='onemill'
'onemill' anagrammed gives 'ILL OMEN'.

'is a' acts as a link.

(Another definition for ill omen that I've seen is " Bad sign".)

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