### Clue: A mother is in club with daughter, as is 6 (11)
### Answer: MACADAMISED 
 ### Explanation: Definition: as is 6
 [A + DAM(a female parent of an animal, especially a domesticated mammal) + IS ]**contained in**(in)MACE(an armour-crushing club from the Middle Ages) **plus**(with) D(abbrev. for "daughter").
Defn: As is the surface of a dual carriageway, the answer to 6 down.