Recording caught asset with the shot of heroin (8)
I believe the answer is:
cassette
'recording' is the definition.
(I've seen this before)
'caught asset with the shot of heroin' is the wordplay.
'caught' becomes 'c' (cricket abbreviation).
'with' is a charade indicator (letters next to each other).
'the shot of heroin' becomes 'te' (I can't explain this - if you can you should believe this answer much more).
'c'+'asset'+'te'='CASSETTE'
Can you help me to learn more?
(Other definitions for cassette that I've seen before include "It may contain film" , "Box of recordings" , "Music player" , "Recorder would accommodate this" , "Form of tape" .)