Freak rain storm has Dutch origins (9)

I believe the answer is:

afrikaner

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'has dutch origins' is the definition.
I can't judge whether this defines the answer.

'freak rain storm' is the wordplay.
'storm' is an anagram indicator.
'freak'+'rain'='freakrain'
'freakrain' is an anagram of 'AFRIKANER'.

Can you help me to learn more?

(Other definitions for afrikaner that I've seen before include "Smuts, for example" , "trekker" .)

I've seen this clue in the Irish Times (Crosaire) and The Irish Times.

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