### Clue: Caligula's sex position many came to see (7)
### Answer: VISITED 
 ### Explanation: Definition: came to see
  VI(Roman, of which Caligula was one, numeral for six,sex in Latin, which Caligula undoubtedly spoke) SITE(location,position) D(Roman numeral for 500,many).  Excellent misdirection and an anti-climax, as you might say, after figuring it out.