Possible Clues:

• What 23 across are when there's a drought at last
• Stupid
• *Look kindly on
• Stupid book, also dry
• Something to keep 1 down in, not so much without a thought
• Silly
• Start off bone dry - that's foolish
• Not smart new lines in underwear
• Silly bishop's plea for better weather?
• Goofy one's left bone dry