Less heavily sherried than the 18-year-old. Needs a bit of time in the glass. Nose: some cardboard and wood shavings, mint chocolates, sun-dried hay, baked apples, and honey. Still pretty fresh and light after 21 years. Veeeery faint peat in the background, could also be charred wood. Makes a rather dry impression, not a whole lot of fruitiness. It's pleasant, but a bit quiet.
On the tongue, the body could be bigger, for sure. A bit thin; unimpressive attack. Very Speyside, very middle-of-the-road, with a very chillfiltered mouthfeel. More sherry on the palate than on the nose. Dry throughout, with tannic bursts and quite a bit of bitterness at the end. The age (i.e., old wood) comes through at the death as well.
Finishes on bitter, sour coffee, perhaps a splash of herbal liqueur as well. Still some heat, even at 43% and 21 years. Not great, to be honest.
Hmmmmh, I really liked the recent 12- and 15-year-old standard bottlings, and the 18-year-old was good as well if you're into dry sherry, but this one leaves me cold. For the most part, this provides an entry-level experience, with the age only showing intermittently, in frustrating flashes. I really don't see the point of this bottling. For the money, I'd opt for a Glenfarclas 21 or even a Ballantine's 21 (the 43% version, needless to say).