Crossword Genius

KO shot? (5)

Ross

I believe the answer is:

outer

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

I don't understand the rest of the clue.

Can you help me to learn more?

(Other definitions for outer that I've seen before include "Objective" , "Route (anag.)" , "Away from the centre" , "External; part of archery target" , "Outside; external" .)

I've seen this clue in the Evening Standard.
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