Cry from Homer … or a phonetic hint to the ends of 18-, 27-, 48- and 62- Across

DOH

Think of the sound you might make when slapping your forehead in frustration—it’s also a catchphrase from a famous yellow-skinned cartoon dad.

This clue plays on two things: Homer Simpson’s famous exclamation "Doh!" and a hidden phonetic hint. The word "Doh" sounds like the letter "D" followed by "O-H," which are the last letters of the answers to 18-, 27-, 48-, and 62-Across. It’s a clever way to tie a pop culture reference to the puzzle’s structure.