End of story, we’re told (4)
I believe the answer is:
tail
'end' is the definition.
(tail is a kind of end)
'story we're told' is the wordplay.
'story' becomes 'tale' ('tale' can be a synonym of 'story').
'we're told' indicates a 'sounds like' (homophone) clue.
'tale' sounds like 'TAIL'.
'of' acts as a link.
(Other definitions for tail that I've seen before include "private eye" , "Feebler batsmen" , "Follow closely - taper (off)" , "Last, rear, part" , "Follow - dog" .)