Return to custody (6)
I believe the answer is:
remand
'return to custody' is the definition.
(I've seen this in another clue)
This is the entire clue.
(Other definitions for remand that I've seen before include "Send back into custody or bail" , "Place (defendant) on bail or in custody" , "Return to custody while evidence is being sought" , "Return prisoner to custody pending further investigation" , "Return (often) to custody" .)