Crossword puzzle clue "swift sharp answer"

Swift, sharp answer

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

Taylor Swift song that contains the line, "Fighting with him was like trying to solve a crossword and realizing there's no right answer"

Sharp product from Sharp

C sharp, in F-sharp major

Sharp answer

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