Crossword puzzle clue "important number to call"

Important number to call

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

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

Important academic number on a college application: Abbr.

Important number for rich people doing golf stuff

Important Wall St. number

Important hotel number

Important number on Downing Street