| Deadlines |
| A poetry form/With seventeen syllables/And only three lines |
| Throwaway lines |
| Apply oneself with determination |
| American Airlines Arena team |
| Lines on a radar screen |
| Lacking determination |
| Its symbol is a "Y" with two horizontal lines through it |
| Lines on the Antiquity of Microbes," a.k.a. "Fleas," in its entirety (world's shortest poem?) |
| Add soundtrack lines to |
| Japan Airlines rival |
| Tackle a task with determination |
| Lines on A.A.A. maps |
| Archaeological age-determination process |
| Exhibiting fierce determination |
| Disciplines |
| Greeting mouthed from the sidelines |
| Despotic felines? |
| Lines of reasoning that go nowhere |
| Aegean Airlines hub, on itineraries |
| Pattern of six horizontal lines found in the I Ching |
| Judge's determination |
| Sporting event that misses newspaper deadlines |
| Felines |
| Outlines |
| One trying to stay between the lines? |
| Pittsburgh Pirates, in headlines |
| Adventurers' outlines? |
| Geometric determination |
| Mints that attract felines |