Produce fresh green tea (8)
I believe the answer is:
generate
'produce' is the definition.
(I know that generate is a more specific form of the action produce)
'fresh green tea' is the wordplay.
'fresh' is an anagram indicator (a fresh re-ordering of the letters).
'green'+'tea'='greentea'
'greentea' is an anagram of 'GENERATE'.
(Other definitions for generate that I've seen before include "Produce, electricity say" , "Produce (energy, etc)" , "evolve" , "Produce, create" , "Make" .)