Showing sagacity the old way? (4)

I believe the answer is:

wise

I believe this is a double definition.

'showing sagacity' is the first definition.
(I've seen this before)

'the old way?' is the second definition.
(I've seen this before)

(Other definitions for wise that I've seen before include "Prudent" , "Discreet" , "Having discernment" , "Sage, knowing" , "Showing sagacity" .)

I've seen this clue in The Times.

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