| Answer | Crossword Clue |
|---|---|
| ACIDY | Sour, as a stomach |
| INKNOTS | Feeling tied up, as a stomach |
| GASSY | Bloated, as the stomach |
| UPSET | Churning, as the stomach |
| PIT | Deepest part, as of one's stomach |
| ACIDIC | Sour as vinegar. |
| SPOIL | Sour, as milk |
| TURN | Go sour, as milk |
| TURN | Go sour as milk |
| VINEGARS | Sour liquids used as preservatives. |
