The most common and most likely answer to this crossword clue is the 3 plus 3 letter word DIM SUM
I've seen this crossword clue in The Daily Telegraph
D
I
M
S
U
M
More clues leading to the result DIM SUM
- Chinese food: turn down whole lot
- Unclear total for Chinese food
- ‘Thick Scum’ not about to become takeaway staple
- Failure of mathematician, possibly, to find parcels from China
- Small parcels dark, all together
- Chinese food day: I’m given portion, you say?
- Chinese food is lacklustre on the whole
- Turn down quantity of steamed dumplings
- Oriental offering obscure problem
- Range of appetisers coming to a total of just 7.5 cents?
Buddy explains!

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.