Crossword puzzle clue "important match"

One with an important role in the production of a fantasy film or period drama (not so important for a porno, though)

All-important match

Most important U.S. Open match

___ event (most important boxing match of the day)

Important match

Out with a Match.com match, say

Event where the number 12 is important, and a feature of 12 two-word answers in this puzzle

Important vitamins.