Related Clues:

• Alter ego that is Paul, not Braveheart: end of story
• It's heard at close of play
• Writer's addition - may be taken out in the theatre!
• Tailpiece - postscript
• Addendum - vestigial pouch in human intestines
• It's useless in the body, but useful in a book
• Short postscript
• Postscript to play, book etc
• Table of subsidiary matter - vestigial organ
• You and the ego are mixed up with a pile at the end of the play
• End-of-play speech
• One may have to have it out with a priest to finish before nine
• Comment at the end of a book or play
• It's part of the large intestine? Presumably, I read that it in a book!
• Peg EU oil production - that's the conclusion