Crossword Clue:

to enter in a book

Answer	Crossword Clue
GRID	Where to enter answers in a crossword
WALDO	Hard-to-find character in a book
ONPOP	Where to hop, in a Dr. Seuss book

BABAR	Animal visitor to Paris in a classic children's book
SHAHPENNER	To assist him in writing a neat book, the ruler used a ..
FLYPAPER	Material in a book you might not be able to put down
DOUBLEDAY	Big name in American book publishing for 120+ years ... and a hint to the answers to the starred clues