Gramophone needle (6)
I believe the answer is:
stylus
'gramophone needle' is the definition.
(I've seen this before)
This is the entire clue.
(Other definitions for stylus that I've seen before include "Vinyl records needle" , "LP record pick-up" , "Device attached to the cartridge of a record player" , "Pointed device on a record player" , "LP tracking point" .)