Cryptic crossword clue
Unknown core feature of Chinese publication 4

The most common and most likely answer to this crossword clue is the 4 letter word ZINE

Z
I
N
E

Buddy explains!

The straight part
We know that "publication" is the straight/definition part of the clue. The straight part is often a synonym or definition, in this case publication = zine.
The cryptic/wordplay part
In cryptic crossword there's often an wordplay/cryptic part as well.
This part involves a more complex hint, such as an anagram, homophone, hidden word, etc.
Sadly, We don't have an explanation for this specific crossword clue yet.

What does ZINE mean?

ZINE noun
  1. A low-circulation, non-commercial publication of original or appropriated texts and images, especially one of minority interest.

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