### Clue: Big cheese spread including old wine (9)
### Answer: POTENTATE 
 ### Explanation: Definition: Big cheese
 PÂTÉ(a spread/a savoury food paste made from finely minced ingredients) **containing**(including) [O(abbrev. for "old" + TENT(a sweet red wine from Spain)].
Defn: …/an important person, specifically a monarch or ruler.