Nowt wrong with Hindu crime fiction (9)

I believe the answer is:

whodunnit

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'crime fiction' is the definition.
I know that 'crime' relates to this answer.

'nowt wrong with hindu' is the wordplay.
'wrong with' indicates anagramming the letters.
'nowt' with its letters anagrammed with 'hindu' can make 'WHODUNNIT'.

Can you help me to learn more?

(Other definitions for whodunnit that I've seen before include "Detective story" , "literary mystery" , "yarn unravelled finally?" , "book" , "crime novel" .)

I've seen this clue in The Times.

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