### Clue: If in the right after quiet confession, this might be short (6)
### Answer: SHRIFT 
 ### Explanation: Definition: confession, this might be short
 IF **contained in**(in) RT(abbrev. for "right", in say, honorific titles) **placed below**(after, in a down clue) SH(an interjection requesting quiet).
Answer: A confession to a priest, an,d (historically), if you were awaiting execution, it refered to the short period allowed to make a last confession.