### Clue: Unjustly take hold of American with "university" accent (5)
### Answer: USURP 
 ### Explanation: Definition: Unjustly take hold of
  US(*American*) +(*with*) U(*university*) RP(abbrev. for Received Pronounciation, originally that of educated English speakers in southern England, public schools, Oxbridge universities (thus also *"university" accent*), adopted by many speakers elsewhere and used in broadcasting, hence sometimes known as BBC English).  Defn:  *Unjustly take hold*, usually of official position or title, eg. Macbeth usurping the throne of Scotland in Shakespeare's play, which, by the way, was a fictional account.