### Clue: Be passionate about teacher's initial suggestion for sacrifice (5,8)
### Answer: BURNT OFFERING 
 ### Explanation: Definition: sacrifice
 BURN(to be passionate about/be possessed by strong emotion) + **1st letter of**(…'s initial) "teacher" + OFFERING(a suggestion that is put forward, during a discussion, say).
Defn: Something, often an animal, burnt at an altar as a sacrifice to a deity… or…..