Cathedral water suppliers? (5)
I believe the answer is:
wells
'cathedral water suppliers?' is the definition.
Although both the answer and definition are plural nouns, I don't understand how one could define the other.
'water suppliers?' is the wordplay.
'water' becomes 'well water' (well water is a kind of water).
'suppliers?' becomes 's' (this could be a standard abbreviation which I don't know about).
'well'+'s'='WELLS'
Can you help me to learn more?
(Other definitions for wells that I've seen before include "Sources of water" , "What a boring person might produce" , "Author" , "Cathedral city; sci-fi writer" , "H. G. . . . . ., science-fiction writer" .)