State of being shut up? (7)
I believe the answer is:
silence
This clue could be a double definition.
'state' is the first definition.
Although both the answer and definition are singular nouns, I can't understand how they can define each other.
'being shut up?' is the second definition.
(I've seen this in another clue)
'of' is the link.
Can you help me to learn more?
(Other definitions for silence that I've seen before include "Secrecy; stillness" , "Quietude" , "License (anag)" , "may be required in court" , "Noiselessness" .)