Possible Clues:

• Undeterred by spume in Welsh river
• Extremely disagreeable - with malice for all
• In defiance of
• Undeterred by neck of land in river
• Left-looking journalist with nastiness for all
• Malice shown by Democrat, European, notwithstanding
• Undeterred by river, welcoming suggestions to go over
• Regardless of small mine in river
• Nevertheless, the editor turns with malice