Struck one as, one found (4,6)

I believe the answer is:

came across

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This might be a double definition.

'struck one' is the first definition.
'came across' can be an answer for 'struck' ('come across' can be a synonym of 'strike'). I am not sure about the 'one' bit.

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

'as' acts as a link.

Can you help me to learn more?

(Another definition for came across that I've seen is " Found".)

I've seen this clue in the Evening Standard.

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