Manage to flee (3)
I believe the answer is:
run
I believe this clue is a double definition.
'manage' is the first definition.
(both can mean to organise)
'flee' is the second definition.
(to flee is to run away)
'to' is the link.
(Other definitions for run that I've seen before include "Flow; smuggle (goods)" , "Move at speed" , "Go swiftly - ladder" , "stand" , "Scarper" .)