### Clue: A bishop brought in to suppress endless feud (7)
### Answer: QUARREL 
 ### Explanation: Definition: feud
 [ A + RR(abbrev. for "Right Reverend", a title given to a bishop) ] **contained in**(brought in) "quell"(to suppress;to end, say, a rebellion, typically with use of force) **minus its last letter**(endless).