| Answer | Crossword Clue |
|---|---|
| CLOG | Footwear that's hard to run in |
| SABOT | Footwear that's hard to run in |
| UGLI | Hybrid citrus that's hidden in Marconi's first name (and you thought we'd run out of ways to clue this) |
| HEELS | They're hard to run in |
| CLOGS | Hard shoes to run in |
| HOTITEM | Product that's hard to keep in stock |
| CRANK | Kind of call that's hard to make in the era of cell phones |
