Mike across the pond makes negative point (5)

I believe the answer is:

minus

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

I cannot understand how the rest of the clue works.

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(Other definitions for minus that I've seen before include "Negative arithmetic operation" , "deficiency" , "Lacking; negative" , "Less, without" , "Take-away (sign)" .)

I've seen this clue in The Sun.

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