Possible Clues:

• Old hand editor left out
• In lexicographical reference, 'hand' forgotten
• Note: Tense and time in dictionary left out
• Forgot books sent over with German journalist
• Not a part of it
• Old hand English duke failed to mention
• Neglected old glove with end cut off by daughter
• Hand in dictionary -- it's left out
• Leave undone or leave out
• Deluded character nearly put in dictionary left out