The most common and most likely answer to this crossword clue is the 6 letter word SHUCKS
I've seen this crossword clue in Financial Times
S
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S
More clues leading to the result SHUCKS
- A word of annoyance is very bad, if said by drunk?
- Disappointed expression of Finn, perhaps, aboard vessel
- Shells emptied of peas, I regret
- Oh dear, what’s left after shelling peas?
- Drunk uses straw? That’s a bit irritating!
- Prepares ears for cooking nuts
- Oh well, those pea pods are empty
- Small Twain boy’s disappointed interjection
Buddy explains!

The straight part
We know that "Oh well/those pea pods are empty" is the straight/definition part of the clue. The straight part is often a synonym or definition, in this case oh well/those pea pods are empty = shucks.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 SHUCKS mean?
SHUCKS noun- The shell or husk, especially of grains (e.g. corn/maize) or nuts (e.g. walnuts).
- A fraud; a scam.
- A phony.
- To remove the shuck from (walnuts, oysters, etc.).
- To remove (any outer covering).
- To fool; to hoax.
- Exclamatory response to a minor disappointment.
- (possibly vulgar) A bashful expression of thanks.