### Clue: The Guardian joining line in the box with electronic figure (6)
### Answer: TWELVE 
 ### Explanation: Definition: figure
  [WE(the Guardian,the paper that's publishing this crossword) **plus**(joining) L(line)] **contained in**(in) TV(television set,the box,boob tube) **plus**(with) E(abbrev. used in things electronic, such as e-mail, e-book,e-commerce)