Possible Clues:

• Flag on newspaper cover
• Highest part of sailing ship
• It's found at top of pole or top of column
• Editorial-page feature
• Name for publication composed in mad haste
• One's right up the pole, as the mad may be
• Mother's violent death made the Daily Telegraph, say
• Manuscript contains a last statement from principal overlooking the editorial
• Who's who in publishing?
• Mum unhappy about article that is printed in big type