Experiences discrimination, say, initially (6)
I believe the answer is:
tastes
'experiences' is the definition.
(taste is a kind of experience)
'discrimination say initially' is the wordplay.
'discrimination' becomes 'taste' (taste is a kind of discrimination).
'initially' says to take the initial letters.
The initial letter of 'say' is 's'.
'taste'+'s'='TASTES'
(Other definitions for tastes that I've seen before include "Eats a sample of" , "Tries to determine the flavour of" , "Experiences" , "Relishes or penchants" , "Savours with the palate" .)