Detrimental (7)

I believe the answer is:

adverse

'detrimental' is the definition.
(I've seen this in another clue)

This is the entire clue.

(Other definitions for adverse that I've seen before include "Unfavourable - red vase (anag)" , "Opposed - inauspicious - opposite" , "Dire" , "Unfavourable to evaders" , "In an opposing direction" .)

I've seen this clue in The Star Tribune and The Sun.

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