Crossword puzzle clue "he wrote my answer"

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

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

"That's all she wrote," and literally, what the last word of each starred answer can be

He wrote "My Answer"

Answer to “Who wrote ‘The Highwayman’?”

Sydney who wrote a memoir entitled "Answer in the Sky ... Almost"

He wrote "Three Pear-Shaped Pieces" to answer criticism that his music lacked form [SEE NOTE ABOVE]