She avoids animal products with lead values exceeding generally acceptable norms (5)
I believe the answer is:
vegan
'she' is the definition.
Both the answer and definition are singular nouns.
Maybe they are linked in a way I don't understand?
I don't understand how the remainder of the clue works.
Can you help me to learn more?
(Other definitions for vegan that I've seen before include "one not using animals" , "Selective consumer" , "Avoider of animal products" , "One shunning animal products" , "Strict vegetarian" .)