Told off leader - About time! (7)
I believe the answer is:
related
'told' is the definition.
(relating is a kind of telling)
'off leader about time' is the wordplay.
'off' is an anagram indicator.
'about' means one lot of letters goes inside another.
'time' becomes 't'.
'leader' with letters rearranged gives 'relaed'.
'relaed' going around 't' is 'RELATED'.
(Other definitions for related that I've seen before include "Connected by blood or marriage" , "within family" , "Having common descent or origin" , "Narrated; connected" , "Akin, associated" .)