Endless uncooked food served up, sadly (4)
I believe the answer is:
alas
'sadly' is the definition.
(I've seen this before)
'endless uncooked food served up' is the wordplay.
'endless' indicates the central letters.
'uncooked' becomes 'raw' ('raw' can be similar in meaning to 'uncooked').
'food' becomes 'sal' (I can't justify this - if you can you should believe this answer much more).
'served up' says the letters should be written backwards.
The middle of 'raw' is 'a'.
'sal' reversed gives 'las'.
'a'+'las'='ALAS'
Can you help me to learn more?
(Other definitions for alas that I've seen before include "Cry of woe" , "Sadly, unfortunately" , "Regrettably, unfortunately" , "-- and alack!" , "woebegone expression" .)