Magick is a term used by Crowley to describe intentional action, or, in fancier terms, "The art and science of causing events to occur in conformity with Will."
Those who use the term, with the k at the end, who do NOT use Crowley's broad
definition are, frankly, silly. Saying Magick with a K is nothing more or less than saying "magick as Crowley described it."
Causing change to occur in conformity with Will (or simply doing something with the full body of intention behind it) can range from prayer to Ceremonial Magick (another critter altogether.)
Wiccans who follow Wiccan ethics general do things with the force of their Will behind them. If you accept these things as Magick, than Wiccans do magick.
HOWEVER, if you only accept a definition that doesn't include things like, oh, breathing with a clear knowledge of the intention behind it, then Wiccans aren't mandated to do it.
Spells, incantations and charms are all parts of a narrow definition of magick that Wicca does not fall into. Some Wiccans do these things, but these things are not a part of any religion. Just like some Wiccans play football...
