Odds only coloured like this, for example! (4)

I believe the answer is:

clue

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'this for example' is the definition.
(this clue)

I don't understand the rest of the clue.

(Other definitions for clue that I've seen before include "It helps towards the solution" , "Crossword hint?" , "It's here top be solved" , "Hint to help the solver" , "Intimation (like this?)" .)

I've seen this clue in the Sydney Morning Herald.

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