Crosswordiee.com

% replaces any number of letters (la% - lake, lamp)_ replaces one letter (ca_ - car, cat)

Crossword clues for Dr. Seuss, for one 7 letters:

PENNAME: Dr. Seuss, for one
MOOSE: Dr. Seuss' Thidwick, for one
KNOX: One of the two characters in Dr. Seuss' "Fox in Socks"