Is it permissible to write the majestic word "Allah" (God) dispersed in a crossword puzzle, or is that considered a whisper (waswasah)?

There is no harm in writing the letters of the name of Allah (Jalalah) separately in squares. By separating the letters, they cease to be the name of Allah and become mere independent letters. The letters can then be connected with a pen to write the Noble Name correctly.