- A UK crime unit exposes tart
- Battery fluid
- Biting into tart
- Bitter
- Burning liquid
- Chemical substance
- Conclusive (test)
- A British crime unit in charge turns sour
- Burning from liquid
- Caustic
- Inside placid Icelander is sharp and biting
- Placid Icelander is corrosive inside
- Sharp tasting or sour
- Sharp-tasting
- Having a bite in Manhattan gym
- Having a sharp or piquant flavour
- Pungently flavoured
- Sharp
- Sharply flavoured
- Spicy
- Tart
- Acute
- Biting
- High-pitched
- Keen
- Keenly perceptive
- Musical note
- Tart
- Acidic
- Become acrimonious
- drink made from lemon juice
- Embittered
- Go bad (of food)
- Gone Bad
- Having an acid taste