Possible Clues:

• Effort - (cause of) worry
• 'Care, distress (7)'
• Difficulty about finally getting ready for the Russians
• Distress, upset or worry
• 'A... shared is a... halved'
• Rue bolt being off gun? I can fix it
• It's not easy to pay for it in Russia after tea
• Renovated turbo sale (50% off) producing riot
• Time and money, that's what's wrong
• Difficulty, care, worry