Crossword puzzle clue "this answer has five letters"

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

This answer has five letters

Like this clue's answer, in five letters

Drink garnish ... or a hint to five letters in the answer to each starred clue

Word or phrase that has no repeated letters (every answer in this puzzle is an example of one)

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

Premier League manager Wenger (the club he manages has the same first five letters as his first name)

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