Keep back (6)
(Other definitions for retain that I've seen before include "Keep in place" , "Hire - keep" , "Save" , "Keep in Tirane" , "Continue to hold on to" .)
'keep back' is the definition.
(I've seen this in another clue)
This is the entire clue.
(Other definitions for detain that I've seen before include "Keep in custody; hold back" , "Hold in detention" , "Imprison" , "put in jail" , "Delay, arrest" .)
'keep back' is the definition.
(I know that reserve is a kind of keep back)
This is the entire clue.
(Other definitions for reserve that I've seen before include "ice" , "Set aside - shyness" , "Lack of openness" , "Modesty- store" , "Kept back stock" .)
'keep back' is the definition.
(I know that keep back can be written as withhold)
This is all the clue.
(Other definitions for withhold that I've seen before include "restrain" , "Keep in reserve, do not release" , "Refrain from revealing" , "Keep for oneself" , "Keep back" .)