Canterbury saint (6)
I believe the answer is:
anselm
'canterbury saint' is the definition.
(I've seen this in another clue)
This is all the clue.
(Other definitions for anselm that I've seen before include "Sainted Archbishop of Canterbury" , "Italian monk, saint and Archbishop of Canterbury, 1093-1109" , "Christian saint" , "Canonised archbishop of Canterbury" , "Man" .)