Norwegian who provided grandma with foreign currency (6)

I believe the answer is:

nansen

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'norwegian who' is the definition.
I know nothing about this answer so I can't tell whether this works.

'grandma with foreign currency' is the wordplay.
'grandma' becomes 'nan' (I've seen this before).
'with' says to put letters next to each other.
'foreign currency' becomes 'sen' (I've seen this in another clue).
'nan'+'sen'='NANSEN'

'provided' is the link.

Can you help me to learn more?

(Another definition for nansen that I've seen is " Fridtjof --, Norwegian Arctic explorer 1861-1930".)

I've seen this clue in the Evening Standard.

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