Use digit or what may be between digits (5)

I believe the answer is:

point

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

I cannot understand how the rest of the clue works.

(Other definitions for point that I've seen before include "Dot, punctuation mark" , "Juncture" , "Narrow headland" , "Sharp end - purpose" , "See 10 Across" .)

I've seen this clue in The Guardian.

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