### Clue: Short life one lost in Slough (3)
### Answer: BOG 
 ### Explanation: Definition: Slough
 "biog"(an alternative to "bio", short for an account of one's life) **minus**(lost) I(Roman numeral for one).
Defn.:  With a lower case initial, a swamp,mire; and perhaps even figuratively synonymous with that much-maligned town of the same name.