Various causes for dietary additives (6)
I believe the answer is:
sauces
'dietary additives' is the definition.
Although both the answer and definition are plural nouns, I cannot see how one could define the other.
'various causes' is the wordplay.
'various' indicates an anagram.
'causes' anagrammed gives 'SAUCES'.
'for' acts as a link.
Can you help me to learn more?
(Other definitions for sauces that I've seen before include "Liquid preparations to add flavour to food" , "Liquid food flavourings" , "Semi-liquid flavourings for food" , "Flavourings and relishes" , "They're served to add moisture or taste to food" .)