Related Clues:

• Wing, perhaps
• Factor a sum
• Paper-clip, perhaps
• 'The significance being …?'
• Figure a sum
• 'Do go on …'
• Interject
• Bonnie's link with Clyde?
• Way to check the check
• What summers do
• +
• Y, in the Yucatán
• Go figure?
• Add later
• It connects things