Shut up or be beaten, in the case of recording (6)
I believe the answer is:
closed
'shut up' is the definition.
(I've seen this before)
'be beaten in the case of recording' is the wordplay.
'be beaten' becomes 'lose' (I've seen this before).
'in the' indicates putting letters inside.
'case of recording' becomes 'cd' (I can't justify this - if you can you should give a lot more credence to this answer).
'lose' placed within 'cd' is 'CLOSED'.
'or' acts as a link.
Can you help me to learn more?
(Other definitions for closed that I've seen before include "Resolved" , "restricted" , "clinched the sale" , "See 1" , "Blocked off" .)