### Clue: Man's place in 1912 18 across, left in hole beneath one's feet (8)
### Answer: PILTDOWN 
 ### Explanation: Definition: Man's place in 1912 18 across
 L(abbrev. for "left") **contained in**(in) PIT(a hole in the ground) + DOWN(beneath/below one's feet).
Defn: The place in East Sussex where bones of a prehistoric man was supposedly found.