### Clue: Leading lady's retreat just after party goes west (8)
### Answer: BALMORAL 
 ### Explanation: Definition: Leading lady's retreat
 MORAL(just/proper) **placed after**(after) **reversal of**(… goes west, in an across clue) LAB(abbrev. for "Labour", as in the Labour Party).
Defn: …, the leading lady of the British monarchy, that is.
… not any run-of-the-mill holiday home.