Related Clues:

• Citation near the back of a book
• Sticky matter, new poetry book being sent back for late supplement?
• Explanation of text friend, not enemy, bored by
• Final message poet composed with guile — waste of time!
• Citation software
• Piece of text after an essay
• Postscript, for example
• Insults arising, commercial office on top of it — something more to say?
• One in two records makes conclusion in Boston
• Literary supplement