Possible Clues:

• Set out suddenly
• Set off with southern colleague on Scottish river
• Head into battle
• 'Perhaps Aunt IV, by the sound of it, is a shy one for the outcome (5,5)'
• Might Sarah IV, by the sound of it, stage such an outcome
• Perhaps Sarah IV may be so forthcoming
• The sound of Sarah IV will emerge from this
• It will emerge that this could be Sarah IV, by the sound of it
• Go out with girl beside river
• Perhaps the outcome of Sarah IV, by the sound of it