Three points to give Arsenal heart - and money! (3)

I believe the answer is:

sen

I'm a little stuck... Click here to teach me more about this clue!

'three points' is the definition.

'give arsenal heart and money' is the wordplay.
'SEN' is hidden in amongst the letters.
But, I am unsure how this is indicated.

'to' acts as a link.

Can you help me to learn more?

(Other definitions for sen that I've seen before include "Formerly one hundredth of a yen" , "One hundredth of a rupiah" , "ready for Japan" , "American politician in short" , "nurse" .)

I've seen this clue in the Evening Standard.

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