The most common and most likely answer to this crossword clue is the 6 letter word WASABI
I've seen this crossword clue in The Times
W
A
S
A
B
I
More clues leading to the result WASABI
- Accompaniment to sushi: was sailor given one?
- Used to be part of the LGBT community, which is quite spicy
- Is no longer a swinger? That’s pungent
- Some stuffing for stew, as a bitter green paste
- Japanese hottie lived with a Guys and Dolls fan
- Did you see me scoffing a black, edible root?
- Grow as a biennial’s pungent root
- Japanese root cut up has quite a bit of a bite
- Plant used to be a bit short
- Herb used to be a person without sexual preference?
Buddy explains!

The straight part
We know that "Accompaniment to sushi" is the straight/definition part of the clue. The straight part is often a synonym or definition, in this case accompaniment to sushi = wasabi.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 WASABI mean?
WASABI noun- A pungent green Japanese condiment made from the plant Eutrema japonicum (formerly Wasabia japonica).
- An imitation of this condiment made from horseradish with green dye.