| JUICEUP | Supercharge, and a hint to what's literally hiding in the four longest Down answers |
| CRAZYMIXEDUPKID | Troubled youth literally hiding in each answer to a starred clue |
| USBCONNECTION | Common PC hookup, and a feature of the four longest Down answers |
| WHYONEARTH | Head-scratching words ... and, phonetically, a feature of the four longest Down answers |
| SHIPWRECKS | Sea disasters, and a hint to what's literally hidden in 18-, 23-, 38- and 50-Across |
| GAG | Joke, and a hint to what's literally inside 17-, 30-, 48-, and 64-Across |
| FAN | Devotee found hiding in the four longest entries |
| ERNE | Bird hiding in the four longest puzzle answers |
| REV | Supercharge, as an engine |
| HOPUP | Supercharge |
| BOOST | Supercharge |
| FALLINGLEAVES | Autumn occurrence, and a hint to the start of the other four longest Down answers |
| LOWHANGINGFRUIT | Easy pickings, and a hint to the four other longest Down answers |
| TOGRINE | Hair growth product ... or a phonetic hint to what's been added to the tops of the longest Down answers |
| ROGAINE | Hair growth product ... or a phonetic hint to what's been added to the tops of the longest Down answers |
| RISINGSEALEVELS | One effect of global warming, and a hint to the five longest Down answers |
| BAT | Something flipped after a walk-off home run ... and in the nine longest Down answers |
| DPS | MLB rally killers, briefly, and a hint to what's in the four longest puzzle answers |
| DIGIT | What's handily featured at the starts of the five longest Down answers |
| MEAT | Filler in a deli sandwich (and in the four longest Across answers) |
