Cheesemaker using rennet, delivering primarily this (4)
I believe the answer is:
curd
'this' is the definition.
The definition suggests a singular noun which matches the answer.
'cheesemaker using rennet delivering primarily' is the wordplay.
'primarily' says to take the initial letters.
The first letters of 'cheesemaker using rennet delivering' is 'CURD'.
Can you help me to learn more?
(Other definitions for curd that I've seen before include "Part of milk" , "Coagulated milk, used to make cheese" , "Thickened milk" , "Basis for cheese" , "It's used in making cheese" .)