Rotten eggs on the nose, and alcohol, and not much else. I would not guess this is Clynelish. Taste is the same story. It's not a pleasant whisky to drink. With some time and water it gets less bad, but never good. Every few years I have to re-learn that Clynelish from a bourbon barrel can be bought blind without tasting, but not so with sherry casks.
Save your money and get a similarly aged Clynelish from a (refill) bourbon barrel instead.