Eric ordered some food (4)
I believe the answer is:
rice
'some food' is the definition.
(rice is a kind of food)
'eric ordered' is the wordplay.
'ordered' indicates anagramming the letters.
'eric' is an anagram of 'RICE'.
(Other definitions for rice that I've seen before include "Edible grains of grass" , "... his librettist - cereal" , "Type of grain" , "Cereal plant" , "Asian staple food" .)