### Clue: Thamesside tower etc, British, being restored (3,3)
### Answer: BIG BEN 
 ### Explanation: Definition: Thamesside tower etc

***(b being)** [anag:*restored*] where B = British
 

 
*Technically, Big Ben is the bell inside the Thamesside tower, but the tower and the clock have become known as Big Ben through repeated usage.