### Clue: A doctor needs superior sharp blade here, possibly (9)
### Answer: AMBULANCE 
 ### Explanation: Definition: A doctor needs superior sharp blade here, possibly
 A + MB(abbrev. for "Medicinae Baccalaureus"/Bachelor of Medicine/a doctor) **plus**(needs) U(letter denoting "upper class"/superior) + LANCE(a sharp blade, used mainly in medicine).
A WIWD clue.