In the threefold scheme the Maiden holds the waxing moon, the fortnight between new and full, and everything that phase is taken to stand for: beginnings, growth, the energy of a project that has not yet met its difficulties. In practical coven work that gives her a fairly specific use. Workings undertaken to start something, to increase something, or to gather momentum are conventionally timed to the waxing moon and addressed to her, and the seasonal festivals of early spring are the ones most often given her name in the ritual calendars that circulate in print.
The qualities attached to her are independence and self-possession rather than innocence, and practitioners are generally careful about that distinction. Popular summaries outside the tradition tend to read Maiden as virgin in the modern sense; inside it, the older sense of a woman who belongs to herself is the one usually intended, and several widely read Wiccan authors say so explicitly.
She is not a separate goddess with a separate cult. Wiccan theology as it is normally set out holds that there is one Goddess and that the three aspects are ways of approaching her, so a ritual may address the Maiden without implying that a different being is being invoked from the one addressed as Mother a month later. Named goddesses out of Greek, Irish or Welsh mythology are frequently attached to the aspect as examples, and which names are used varies considerably between traditions and between authors.