### Clue: Crusading barrister (7)
### Answer: TEMPLAR 
 ### Explanation: Definition: Crusading barrister
  Cryptic defn:  A barrister who has chambers in the Inner or Middle Temple, London which were originally established by the crusaders, the Knights Templars.  Edit.note:  Reminded by comments #1&2 – Also a halo-ed white knight detective, Simon Templar aka The Saint, created by Leslie Charteris.  Left out in my hurry 🙂