Discrimination (5)
'discrimination' is the definition.
(I know that taste is a type of discrimination)
This is all the clue.
(Other definitions for taste that I've seen before include "Gustatory sensation" , "Try (food)" , "Small sample of food" , "Dash" , "Smack" .)
'discrimination' is the definition.
(I know that ageism is a type of discrimination)
This is the entire clue.
(Other definitions for ageism that I've seen before include "Prejudice on grounds of advanced years" , "Discrimination e.g. against old people" , "Discrimination on the basis of the length of one's life" , "Images (anag)" , "Prejudice or bias against old people" .)