Possible Clues:

• Lay low after college booze-up off the head - the man upstairs will certainly hear about it from someone else
• College booze-up? Off top of head, primarily lay low or man upstairs will certainly hear about it from someone else!
• Bury meeting said to be for mediation
• Saying of a prayer on another's behalf
• Plea for another is not sincere, possibly
• Stand in for someone in old exam? Give that up!
• Form of prayer ...
• Action of intervening on behalf of another
• Act of pleading on behalf of another
• Prayer in which there's asking, or insistence possibly