Harsh-sounding tribal chief? (8)

I believe the answer is:

clanking

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'sounding tribal chief?' is the definition.
'clanking' can be an answer for 'sounding' (clanking is a kind of sounding). I am unsure of the 'tribal chief?' bit.

I can't explain the rest of the clue.

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I've seen this clue in The Times.

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