Person with time to run (6)
I believe the answer is:
manage
'to run' is the definition.
(run can mean to manage or be in charge of)
'person with time' is the wordplay.
'person' becomes 'man' (man is a kind of person).
'with' is a charade indicator (letters next to each other).
'time' becomes 'age' (an age is a period of time).
'man'+'age'='MANAGE'
(Other definitions for manage that I've seen before include "Handle, run" , "Exercise control - don't fail" , "Run; cope" , "Control; cope" , "Supervise staff" .)