### Clue: Lawyer, very independent, entering a fine attack in legal document (9)
### Answer: AFFIDAVIT 
 ### Explanation: Definition: legal document
 [ DA(abbrev. for "district attorney", a prosecuting officer in the US legal system) + V(abbrev. for "very") + I(abbrev. for "independent") ] **contained in**(entering) [A + F(abbrev. for "fine") +FIT(an attack;a sudden appearance of, say, coughing or sneezing;a seizure due to epilepsy) ].