Crossword puzzle clue "letters to answer"

Answer, when pointing to this answer, to the question "Which letters answer this clue?"

Starting a project ... and what the letters between the starting and ending pairs of letters in each starred answer are doing?

What the start of each starred answer is part of, for a company that intersects that answer

"Did you figure out the answer to this clue?" answer

Using both sides with equal frequency (like the letters in this puzzle's answer grid?)

Enclosure ... and an alphabetical listing of letters not appearing elsewhere in this puzzle's answer

Vat, e.g., for this answer's last six letters?

See highlighted letters intersected by this answer