Steak that's black in colour (1-4)
I believe the answer is:
t-bone
'steak' is the definition.
(T-bone steak is an example)
'black in colour' is the subsidiary indication.
'black' becomes 'b' (abbreviation used in chess).
'in' indicates putting letters inside.
'colour' becomes 'tone' (tone is a kind of colour**).
'b' put within 'tone' is 'tbone'.
'that's' is the link.
(Other definitions for t-bone that I've seen before include "Choice cut of steak" , "Type of steak" , "Choice piece of loin steak" , "Kind of steak" , "Large cut of steak" .)