Visionaries always surrounded by saints (5)
I believe the answer is:
seers
'visionaries' is the definition.
('seer' can be a synonym of 'visionary')
'always surrounded by saints' is the wordplay.
'always' becomes 'eer' (poetic way of saying ever).
'surrounded by' means one lot of letters goes inside another.
'saints' becomes 'ss'.
'eer' inserted into 'ss' is 'SEERS'.
(Other definitions for seers that I've seen before include "Visionaries" , "wise men" , "Prophets" , "They have visions of the future" , "They divine the future" .)