Mushroom ramen OK in part (5)
I believe the answer is:
enoki
'mushroom' is the definition.
(I've seen this before)
I don't understand how the rest of the clue works.
Can you help me to learn more?
(Other definitions for enoki that I've seen before include "Japanese mushroom type" , "Fare from the Far East" , "Oriental mushroom; E ikon (anag.)" , "Japanese food" .)