Possible Clues:

• Declare invalid, as a marriage
• Invalidate, as a contract
• Invalidate yearbook, removing second article
• Cancel removal of second article from regular publication
• Set aside a returned Bath bun Sally's not wanted
• Declare invalid or officially cancel
• Rebel UN nation holds back repeal
• Cancel regular publication after second article is rejected
• Bring an end to deal, unnatural to some extent on reflection
• Cancel yearbook, having lost one article