Possible Clues:

• Where it's no light matter to be following 18 down
• After your day is done, that's where you'll be
• Not knowing how to mend a fuse?
• Without information
• Not informed
• In a state of ignorance
• Wild guess, and a hint to four of this puzzle’s squares
• 'Dancing -- -- --', 1985 Bruce Springsteen single
• Unaware where the bulbs have gone?
• Safe from the flood — keeping daughter oblivious