Possible Clues:

• It's under an underscore
• What's this - hoax taking in husband before noon?
• Jack-in-the-box part
• Dash in the off-licence?
• Publicity involving husband by name, a joiner
• Punctuation mark whose name comes from Greek for “in one”
• Postnuptial adoption, at times
• Moderate's so on both sides of this
• Dash's cousin
• Small dash