### Clue: Silence surrounding mountain climbing tragedies at last featured in sensational news story (6)
### Answer: SPLASH 
 ### Explanation: Definition: sensational news story
 [SH!(an exclamation calling for silence) **containing**(surrounding) **reversal of**(… climbing, in a down clue) ALP(a high mountain, especially a snow-capped one) ] **containing ** **last letter of**(… at last featured in) "tragedies".