Characteristic purpose (5)

I believe the answer is:

point

I believe this is a double definition.

'characteristic' is the first definition.
(point is a kind of characteristic)

'purpose' is the second definition.
(I've seen this before)

(Other definitions for point that I've seen before include "Sharp end - purpose" , "Bearing - precise moment" , "cricketer on the off side" , "rocks?" , "Sharp or tapering end" .)

I've seen this clue in The Times.

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