Related Clues:

• Pair of smalls flying from foreign embassy, perhaps
• It doesn't matter which here, it turns out
• Word introducing first of two 16s
• Word introducing first alternative
• Third of three choices
• Tie up with her or else
• "Both work for me"
• Naturalist puts end to middle, perhaps
• Poet best known for 'The Highwayman'
• "It could happen"
• This or that, it matters not
• One of two — or one in three, perhaps
• "For all I know"
• Number including unity, one or the other
• Poet who might have written 'Do I contradict myself?'