Possible Clues:

• Refer to indirectly
• Suggest indirectly
• Intimate, with 'to'
• The whole of this is due to refer to it
• Refer to
• To - to is to mention in passing
• Thus one will refer to the whole of it, due to muddle
• Speak of returning in the dull aftermath
• Refer casually
• Refer to the total due to be revised