| Answer | Crossword Clue |
|---|---|
| PINT | Blood donor's offering |
| TYPEOS | Universal blood donors. |
| PINT | Unit for blood donors. |
| OPOSITIVE | Universal donor's blood type |
| TYPEO | Universal donor's blood designation |
| OTYPE | Like universal blood donors |
| PRESENTARMS | What blood donors do? |
| VOLUNTEERS | Blood donors and sky watchers. |
| ONEG | Universal donor's blood type, briefly |
| GROUPO | Universal donor's blood typing category |
| TYPEO | Like a universal donor's blood |
| IGAVE | "... at the office" (blood donor's boast) |
| ONEG | Universal donor's blood type, for short |
| RHNEGATIVE | Like the blood type of "universal donors" |
