Binder for recording (4)
I believe the answer is:
tape
I believe this is a double definition.
'binder' is the first definition.
(I've seen this in another clue)
'recording' is the second definition.
(tape recording is a kind of recording)
'for' is the link.
(Other definitions for tape that I've seen before include "Common medium for recording" , "that race winner may break" , "This is often stretched across the finishing line of race" , "Fabric strip; record" , "Band" .)