Possible Clues:

• Account for one taken in by former scheme
• Say why more attractive new partner was sought?
• Defend former partner left in drag
• Give reasons why — in centrepiece of text, straightforward
• Describe old lover, not much to look at
• Describe, make clear
• Give account of island in old map
• Account for Essex's banks not attractive
• Say why more attractive lover was sought?
• Give a reason for changing axle pin