### Clue: Train with Dutch boarders losing time before El Salvador? They're not certain (8,7)
### Answer: EDUCATED GUESSES 
 ### Explanation: Definition: They're not certain
A charade of ~~ENUCATE~~ EDUCATE ('train') plus D ('Dutch') plus GUES[t]S ('boarders') minus the T ('losing time') plus ES ('El Salvador', International Vehicle Registration).