Crossword clues for 34-Down base:IOS34-Down baseTHREEDOGNIGHTJoy to the World group, and based on the ends of 20-, 34- and 43-Across, what you're having if you solve this puzzle after dark?HEROSANDWICHDeli lunch ... or, based on a word hidden in 20-, 34- and 41-Across, what each of those answers is?