Hey fayeb, I see you never got an answer at the time, so this might be too late.
[Will nose-clipping] help me to lose the flavour for the wine and not want it anymore or does it just help my body not to recognise the calorie factor?
The latter. The theory behind SLD (insofar as I can make out) does *not* suggest it would necessarily help you cut out wine.
The rough theory is this. Consuming calories with no associated flavor (e.g by consuming calories that *have no* flavor, or via something like nose clipping to reduce the olfactory components of flavor) results in a lowering of the body's "set point". One of the body's primary mechanism for then achieving that lowered set point is to reduce your appetite.
If that theory is correct, then it doesn't seem to offer any mechanism -- other than lowering your general appetite for food -- for reducing your wine intake.
I myself don't drink alcohol, but most of my friends do. Anytime they've commented that they "really need to not drink so much" -- and by that they mean only what you're talking about, not alcoholism levels of consumption -- subsequent questioning revealed that the reason they drink is not the same as the reason I overeat. A major reason they drink alcohol is for the alcohol effect, and less for the calorific/taste/sugar/whatever-the-reason-I-love-cheesecake effect.
I don't *think* nose-clipping has much to offer on lowering one's "appetite" for the alcohol effect. That said, why not try it and see?
 As a non-drinker I was intrigued as to *why* people would drink, and then when I figured it out I was intrigued why they'd want to drink less! :-)