| Answer | Crossword Clue |
|---|---|
| ACERB | Sour-tasting, old-style |
| ACERB | Sour tasting, old-style |
| ACERB | Sour-tasting |
| ACID | Sour-tasting |
| TART | Sour-tasting |
| ACERB | Sour tasting |
| ACERB | Sour tasting, oldstyle |
| BITTEREST | Most sour-tasting |
| ACID | Sour-tasting substance |
| SLOE | Sour-tasting fruit |
| acidulous | Sharp-tasting or sour |
| sourwood | a small United States tree (Oxydendrum arboreum) of the heath family with white flowers and sour-tasting leaves |
| sourwoods | A North American tree of the heath family with sour-tasting leaves. Most common in the southeastern US, it has drooping clusters of white bell-like flowers in early summer and bright red foliage in autumn |
