### Clue: Pastry base with crushed garlic's not good (6)
### Answer: ECLAIR 
 ### Explanation: Definition: Pastry

**E** ("base" of the natural system of logarithms, in maths) + ***(arlic) **[anag:*crushed*) where ARLIC is (g)ARLIC without the G (*not* *G(ood)*)