Manage to get time with little one (4)
I believe the answer is:
runt
'little one' is the definition.
(I've seen this in another clue)
'manage to get time' is the wordplay.
'manage' becomes 'run' (both can mean to organise).
'to get' is a charade indicator (letters next to each other).
'time' becomes 't' (abbreviation).
'run'+'t'='RUNT'
'with' acts as a link.
(Other definitions for runt that I've seen before include "Smallest pig in litter" , "little piggy" , "Litter-weakling" , "Weakling of the litter" , "Littlest oinker" .)