Possible Clues:

• Regular payment to a member of the clergy
• Allowance for clergy, e.g.
• Payment of small gratuity on completion
• Pay bonus money through post
• Word from the Latin for ''soldier's pay''
• Regular money as reward, put in mail
• 'For Cynthia doth in sciences abound, /And gives to their professors —s large' (Spenser, Colin Clout's Come Home Againe
• In church it pays to cut off the top and leave the very last bit only
• Pay raise — it's Pasquale's premier objective
• Fixed income