Meat in paella evidently rejected (4)
I believe the answer is:
veal
'meat' is the definition.
(veal is a kind of meat)
'in paella evidently rejected' is the wordplay.
'in' indicates a hidden word.
'rejected' shows that the letters should be reversed in order.
'laev' can be found hidden inside 'paella evidently'.
'laev' backwards is 'VEAL'.
(Other definitions for veal that I've seen before include "Type of meat" , "Calf's flesh as food" , "cuisine" , "meat, R [ROSE] maybe" , "what the meat course may be" .)