Witnesses what’s written beneath title of saintly Swede’s book? (10)
I believe the answer is:
bystanders
'witnesses' is the definition.
(I know this)
I cannot understand how the remainder of the clue works.
(Other definitions for bystanders that I've seen before include "Onlookers" , "Those happening to be present" , "Observers" , "Spectators" .)