Native American chief supposed to have had a lover called Minnehaha (Laughing Water) (8)

I believe the answer is:

hiawatha

(Other definitions for hiawatha that I've seen before include "Longfellow's Onondaga Indian" , "Poetic Indian" , "Red Indian hero of Longfellow's poem" , "Longfellow's legendary native American chief" , "Indian hero of Longfellow's poem 'The Song of ... '" .)

I've seen this clue in The Guardian.

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