Kikkoman product (3,5)
I believe the answer is:
soy sauce
'kikkoman product' is the definition.
(I've seen this in another clue)
This is the entire clue.
(Other definitions for soy sauce that I've seen before include "addition to a meal" , "Ingredient in Chinese" , "Condiment" , "Staple of eastern cooking" , "Eastern cooking ingredient" .)