Michael

What a “mixed up, muddled up, shook up” puzzle, except for 18A. I had a problem in the SW corner, with ISA_ crossing _ EN. “Oho!” Is another filler word that could mean anything. ISAY, ISAW, whatever. And everyone knows “WEN” is a form of copper currency used in Imperial China. It took several passes trying to find my mistake before I realized modern Japanese currency also fit, allowing me to pour a glass of champagne to celebrate. Of course it tasted just like C-O-L-A Cola

48D Mr. Ernst was long dead when Ernst & Whinney (formed when partners Ernst & Ernst merged with Whinney Smith) merged with the firm named for Mr. Arthur Young, who was also dead. Ernst and Young would have had to live well past 100 to see their names joined as partners.

Solving on my phone I couldn’t just scan for the italicized entries and didn’t notice the crossing rebus downs were also in italics. When I got to the revealer after already having solved the three rebus acrosses and had only the SE left I was wondering how he was going to fit three more ANSWERKEYS (DEL, INS and CTRL?) in that corner.