| Answer | Crossword Clue |
|---|---|
| IOU | Unofficial promise to pay. |
| IOU | Promise to pay. |
| NOTE | Promise to pay |
| IOU | Promise to pay |
| IOU | Promise to pay: abbr. |
| IOU | Written promise to pay |
| IOU | "Promise to pay" letters |
| IOU | Promise-to-pay note |
| IOU | Promise to pay: Abbr. |
| IOU | Signed promise to pay |
| IOU | Promise to pay, briefly |
| IOU | Promise to pay, for short |
| IOU | Evidence of a promise to pay. |
