Possible Clues:

• See 8
• Ralph -- Emerson
• He hides in children's books
• Low ad (anag) - boy's name
• 'The Great ___ Pepper' (1975 movie)
• "Where's ___?" (kid's book series)
• The 'W' in R.W.E.
• Old eccentric from Western Australia first had mechanical gadget
• See 22-Across
• 'The Great ___ Pepper,' 1975 film