### Clue: Huge fuss about Russian leader. He's got his eye on you! (3,7)
### Answer: BIG BROTHER 
 ### Explanation: Definition: He's got his eye on you
 BIG(huge) + BOTHER(a fuss/a to-do) **containing**(about) **1st letter of**(… leader) "Russian".
Defn: Figuratively, those who are in power and are able to spy/have an eye on everyone.