Still crackling on vinyl record (6)
I believe the answer is:
static
I believe this clue is a double definition.
'still' is the first definition.
(static can mean still or not moving)
'crackling on vinyl record' is the second definition.
(crackling sound made by a record player)
(Other definitions for static that I've seen before include "Its cat (anag)" , "irritation for the listener?" , "Stationary" , "That's shocking!" , "Still, not moving" .)