| Answer | Crossword Clue |
|---|---|
| ADDL | For an extra cost: Abbr. |
| PET | Extra cost for an airline passenger |
| ENS | Many an extra on "Star Trek": Abbr. |
| INTERESTPAYMENT | Extra cost for buying on time |
| EXTRA | For an additional cost |
| EXTRA | Available for an added cost |
| LOFT | Overhead cost for an artist? |
