Quiet hotel stopping concession has to close permanently (4,2,4)
I believe the answer is:
shut up shop
'close permanently' is the definition.
'shut up shop' can be an answer for 'close' (thesaurus). I am not sure about the 'permanently' bit.
I don't understand how the remainder of the clue works.
Can you help me to learn more?
(Other definitions for shut up shop that I've seen before include "Close business at end of day (or permanently)" , "Cease trading" .)