Saint always offers guidance (5)
I believe the answer is:
steer
'guidance' is the definition.
(I know that steer is a type of guidance)
'saint always' is the wordplay.
'saint' becomes 'st' (abbreviation).
'always' becomes 'eer' (poetic way of saying ever).
'st'+'eer'='STEER'
'offers' is the link.
(Other definitions for steer that I've seen before include "Direct movement" , "Young bull" , "Cattle - guide" , "cox" , "Guide, control" .)