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Cynical of advanced experimentation into using sound waves (8)

Ross

I believe the answer is:

sardonic

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'cynical' is the definition.
(I've seen this before)

I don't understand the rest of the clue.

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(Other definitions for sardonic that I've seen before include "Scornfully mocking" , "Scornfully derisive" , "Disdainfully or ironically humorous" , "Cynical -- so rancid (anag)" , "Heartless and bitter" .)

I've seen this clue in The Hindu.
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