The clues below can be answered in a distinctive way, so that the answers will have something in common. The clues themselves are not related.

1. Tells the future
2. Military attacks
3. Chilly forecast
4. Private students, perhaps

HINT:
1. Foresees

Answers:

1. CCCC (foresees - 4 C's)
2. AAAA (forays)
3. TTTT (forties)
4. TT (tutees)

Credit:
Jeff Chen (#1-3)