Castle fortress (4)
I believe the answer is:
keep
(Other definitions for keep that I've seen before include "Remain" , "Hold - part of castle" , "Hold - fortress" , "Retain in old castle (4)" , "Subsistence" .)
I believe the answer is:
keep
(Other definitions for keep that I've seen before include "Remain" , "Hold - part of castle" , "Hold - fortress" , "Retain in old castle (4)" , "Subsistence" .)