### Clue: Catty drinkers knocked back Bud with a soprano (7)
### Answer: LAPPERS 
 ### Explanation: Definition: Catty drinkers
 **Reversal of**(knocked back) PAL(a friend/a bud/buddy) **plus**(with) PER(a/each, as in "$100 per trick") + S(abbrev. for "soprano").
Defn: What you might call felines from the way they drink.