Red or black stuff around piece of meat (9)
I believe the answer is:
Here is my best explanation:
'red' is the definition.
'black stuff around piece of meat' is the subsidiary indication.
'black stuff' becomes 'coal'.
'around' means one lot of letters goes inside another.
'piece of meat' becomes 'chine' (meat around an animal's backbone).
'coal' enclosing 'chine' is 'cochineal'.
'or' is the link.
(Other definitions for cochineal that I've seen before include "Dye", "Colouring", "Scarlet food dye", "Red food colouring", "Red food dye (from beetles)", "Scarlet dye - in a cloche (anag)", "Red colour", "red colouring", "Crimson dye from crushed insects" and "Food colouring".)