### Clue: It runs in front of office in London station (8)
### Answer: WATERLOO 
 ### Explanation: Definition: London station
 WATER(fluid that runs in rivers, out of taps, etc.) **placed above**(in front of, in a down clue) LOO(a toilet, a British euphemism for which is "office").
Defn: … on the Underground and main line rail networks.