Stuck on a Crossword? Day-___ Clue Finally Solved!

The answer to the crossword question “Day-___ is GLO” is likely “GLOw.” The wordplay here involves taking the common phrase “day-glo,” which refers to a bright, fluorescent color, and replacing the first half with the word “day-.” This creates a new word, “Day-GLO,” which is a registered trademark of a company that produces fluorescent paint and other materials. Since the clue ends in “is GLO,” we can assume that the missing word is related to the trademarked term Day-GLO, hence “GLOw.”