Possible Clues:

• Adopting principle at first, one head gives advice
• One's contribution to get Putin out
• Contribution from Russian leader put to the bottom
• Data provided
• Popular place for material
• Contribution made by fashionable set
• Contribution's one penny put in fruitcake
• Enter president's home moved to the north
• Mentor's offering
• Contribution I pen, finally turning up on time