Possible Clues:

• "Fish in ___? How can that be?" ("Hop on Pop" line)
• Trapped, after "up"
• 'Fish in ___? How can that be?' ('Hop on Pop' line)
• Kilmer poem ending
• '...lovely as ___'
• Up ___ (trapped)
• '__ Grows in Brooklyn'
• "— Grows in Brooklyn"
• Kilmer's famous last words?
• "...poem lovely as ---"