Phonograph records (5)
'phonograph records' is the definition.
('disc' can be a synonym of 'phonograph record')
This is the entire clue.
(Other definitions for discs that I've seen before include "Flat, thin circular objects" , "Records" , "Flat, circular plates" , "Type of recordings" , "Layers of cartilage between vertebrae - they may slip" .)
(Other definitions for vinyl that I've seen before include "Synthetic plastic" , "Flexible plastic for flooring (or old records?)" , "LP-making material" , "LP material" , "PVC" .)