Enclose; restrain (7)
I believe the answer is:
contain
I believe this clue is a double definition.
'enclose' is the first definition.
(I know this)
'restrain' is the second definition.
(I know this)
(Other definitions for contain that I've seen before include "Enclose" , "Hold within, suppress (7)" , "Keep within limits or have within" , "keep within bounds" , "Include - restrict" .)