Splendid English feast (6)
I believe the answer is:
regale
'feast' is the definition.
(regale can mean to feast)
'splendid english' is the wordplay.
'splendid' becomes 'regal' (I've seen this in another clue).
'english' becomes 'E' (abbreviation as in OED).
'regal'+'e'='REGALE'
(Other definitions for regale that I've seen before include "Amuse with stories" , "Lavishly supply" , "Feed or entertain well" , "Entertain with conversation" , "Entertain with stories" .)