Conditional release (6)
I believe the answer is:
parole
'conditional release' is the definition.
(I've seen this before)
This is all the clue.
(Other definitions for parole that I've seen before include "Give Al rope when he's released early" , "limited release" , "Early release on promise of good behaviour" , "Promise (that prisoner is released on)" , "Release of prisoner promising good behaviour" .)