Cries endlessly about Chinese food (4)
I believe the answer is:
rice
'food' is the definition.
(rice is a food)
'cries endlessly about chinese' is the wordplay.
'endlessly' says to take the centre (the ends of the words are removed).
'about' is an insertion indicator.
'chinese' becomes 'c' (this might be a standard abbreviation of which I'm unaware).
The central letters of 'cries' are 'rie'.
'rie' enclosing 'c' is 'RICE'.
Can you help me to learn more?
(Other definitions for rice that I've seen before include "Grain for food" , "Cereal food" , "Seeds from the paddy field" , "It grows in paddy fields" , "Grains used as food" .)