The answers to the clues below will have something in common:

1. Superbowl betting site, often
2. Lags
3. What's happening now
4. Gertrude Ederle swam across it
5. James Joyce's writing style
6. Thoreau's Walden
7. Natural border of ten states

Answers:

1. Office pool
2. Falls behind
3. Current events
4. English Channel 
5. Stream of consciousness
6. Pond
7. Mississippi River

Credit: Alyssa Brooke [no pun intended]
WATER, WATER EVERYWHERE