| Answer | Crossword Clue |
|---|---|
| HABIT | It's tough to break one |
| HABIT | It's good to break a bad one |
| HABIT | Tough thing to break |
| HABITS | They can be tough to break |
| NUT | It's tough to crack |
| CITYHALL | It's tough to fight, proverbially |
| ATOMS | It's tough to split them |
| ACORN | It's a tough nut to crack |
| TRIPLELUTZ | It's tough to land on the ice |
| DEBT | It's tough to be in a lot of it |
