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

1. Form of extra-sensory perception
2. Like the E and G in e.g.
3. Baseball group
4. Misdemeanor vs. felony
5. Not much money, at least to some
6. Outside the direct line of sight
7. Small, incremental progress
8. It's often kept on hand for small expenses.
9. 20 million of this board game sold in 1984.
10. College freshmen or juniors
11. An expense so small it is not even considered
12. Compensation to a seller after a buyer's breach of contract

Answers:

1. Second sight
2. Lower case letters
3. Minor league team
4. Lesser charge
5. Paltry sum
6. Peripheral vision
7. Marginal gains
8. Petty cash
9. Trivial Pursuit
10. Underclassmen
11. Negligible charge
12. Incidental damages

Credit:
Chicago Tribune Crossword
Robert H. Wolfe
GETTING DOWN (#1-3)