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With damaged sax outside Head Office, a South African clicks in this (5)

Ross

I believe the answer is:

xhosa

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(Other definitions for xhosa that I've seen before include "South African language spoken with clicks" , "South African cattle-rearing people" , "Member of a Bantu-speaking tribe" , "South African tribe" , "Clicking tongue" .)

I've seen this clue in The Hindu.
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