Oolong and pekoe (4)
I believe the answer is:
teas
'oolong and pekoe' is the definition.
(I've seen this in another clue)
This is all the clue.
(Other definitions for teas that I've seen before include "Beverages from leaves" , "Afternoon meals" , "Hot drinks" , "Beverage made by steeping leaves in water" .)