Looks impressive but it's not working (8)

I believe the answer is:

striking

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'it's not working' is the definition.
(I've seen this before)

I can't explain the remainder of the clue.

(Other definitions for striking that I've seen before include "Remarkable; hitting" , "means of putting pressure on employers" , "Signal" , "Hitting or refusing to work" , "Impressive; refusing to work" .)

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

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