Audiotape from band breaking social order (8)
I believe the answer is:
cassette
'audiotape' is the definition.
(I've seen this in another clue)
'band breaking social order' is the wordplay.
'band' becomes 'set' (synonyms).
'breaking' indicates putting letters inside.
'social order' becomes 'caste' (I've seen this in another clue).
'set' going inside 'caste' is 'CASSETTE'.
'from' is the link.
(Other definitions for cassette that I've seen before include "Test case about tape container" , "Vintage recording" , "something from old-fashioned language laboratory?" , "Container to go into tape deck" , "bit of outdated technology?" .)