Thought I would start by giving you my definition/explanation about SMSW. I do it backwards:
Whisky = fermented grain (corn, rye, barley…) which is then distilled, usually aged in oak barrels (eg. rye, malt, bourbon).
Scotch = Whisky from Scotland only, has to be aged 3 years min., and must be distilled, aged, bottled in Scotland.
Malt = barley that has been soaked and allowed to germinate to maximize sugars, then dried, crushed and made into beer, which is then distilled.
Single = whisky that comes from one distillery only.
So SMSW is a Scotch whisky made from malted barley and from a single distillery.
Is that as clear as mud?