### Clue: Exiled European king's men coming back into US state (5)
### Answer: CAROL 
 ### Explanation: Definition: Exiled European king
 **Reversal of**(… coming back) OR(abbrev. for "other ranks", men in the military who aren't commissioned officers) **contained in**(into) CAL(abbrev. for the US state of California).
Answer: Carol II, king of Romania until his enforced abdication and exile.