Thin clear soup (8)
(Other definitions for consomme that I've seen before include "stock product" , "Clear soup usually of beef, veal or chicken" , "liquid course" , "Liquid food" , "Clear French meat soup" .)
'thin clear soup' is the definition.
(I've seen this before)
This is the entire clue.
(Other definitions for bouillon that I've seen before include "Thin clear soup" , "Thin seasoned broth or stock" , "Clear seasoned broth" , "Strong broth" , "Thin soup or stock" .)