Quick to provide a cleric's need (6)
I believe the answer is:
living
'quick' is the definition.
(I've seen this before)
I cannot understand how the remainder of the clue works.
Can you help me to learn more?
(Other definitions for living that I've seen before include "Around" , "19 of London, or 25 of Africa?" , "Alive, income" , "sustenance" , "parish" .)