Bert,
I think the smell is related to CO2. If you have a drill mounted stirrer, I would use it and see how much foam you get. If you get a lot, it is CO2 and just stir the heck out of it. If you don't get any foam, then it probably just needs time to age. The additional stirring will not hurt, but if you plan to age the wine,2 crushedcampden tablets or 1/8 tsp of sulfite would eat the oxygen added to the wine from stirring. You could add more sulfites, but I always err on the side of caution with the sulfites. If you get too much, it could ruin your wine.