Sensible characters, we hear? (4)

I believe the answer is:

wise

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

I can't explain the rest of the clue.

(Other definitions for wise that I've seen before include "Experienced, knowing" , "Discerning" , "Sagacious" , "Discreet" , "Old way" .)

I've seen this clue in The Guardian.

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