Possible Clues:

• With one-fifty in there it's by no means a crowd
• Portrait painter keeps on without friends
• Whose progress led to Vanity Fair?
• One half-century in there is enough to make one want some company
• US chat-show host backed in case of levity not involved with others
• In trial, one lying is without friends
• By oneself
• Unfriended
• Friendless and feeling it
• Deserted