Possible Clues:

• Bird _____
• Source of ideas -- bath, originally, then shower
• Be a little wet like him with A1 twisted
• What makes you associate 'British' with 'bad weather'?
• Her support in showing it's all in your head
• Organ
• Thinker, born to rule, reportedly
• Cranium organ
• Haemorrhaging of talent
• Home supporter first to get hit over the head