Pleasant-tasting juice this writer had (5)
I believe the answer is:
sapid
'pleasant-tasting' is the definition.
'juice this writer had' is the wordplay.
'juice' becomes 'sap' (I've seen this before).
'this writer' becomes 'i' (the person who is writing these clues).
'had' becomes 'd' (I've seen this in other clues).
'sap'+'i'+'d'='SAPID'
(Other definitions for sapid that I've seen before include "savoury'" , "Engaging" , "Pleasant tasting" , "Having a pleasant taste" , "Interesting" .)