It's just an anagram of 8 wds in the clue making up 50 letters! Actually, tho' I was never a Paul fan, I thought that was quite clever, as the long clue more or less makes sense!
Chris: q. from an ignoramus --- What does "bottoms up" mean here?!
Supposedly you can get even a long one like this out of Universal Crossword Solver, but it hasn't worked for me yet (I'm too stupid to copy & paste still probably, despite your many efforts to teach me. We go by the book here & it produces nothing. Would be useful next time, though ---instead of first wondering whether it's Karl or Groucho etc).