Tip of Sioux Indian's dart (6)

I believe the answer is:

scurry

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'dart' is the definition.
(thesaurus)

'tip of sioux indian's' is the wordplay.
'tip of sioux' becomes 's' (I can't justify this - if you can you should believe this answer much more).
'indian' becomes 'curry' (I've seen this before).
's'+'curry'='SCURRY'

Can you help me to learn more?

(Other definitions for scurry that I've seen before include "Scamper" , "short horse race" , "Dash (like a mouse?)" , "Move hurriedly" , "Move quickly" .)

I've seen this clue in The Independent.

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