The most common and most likely answer to this crossword clue is the 7 letter word HOWLERS
I've seen this crossword clue in The Guardian
H
O
W
L
E
R
S
More clues leading to the result HOWLERS
Buddy explains!
The straight part
We know that "Those bewailing/ghastly errors" is the straight/definition part of the clue. The straight part is often a synonym or definition, in this case those bewailing/ghastly errors = howlers.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 HOWLERS mean?
HOWLERS noun- That which howls, especially an animal such as a wolf or a howler monkey.
- A person hired to howl at a funeral.
- A painfully obvious mistake.
- A hilarious joke.
- A bitterly cold day.
- A person who expresses aggression openly in the form of threats.
- (sometimes figurative) A heavy fall.
- A serious accident (especially to come a howler or go a howler; compare come a cropper).
- A tremendous lie; a whopper.
- A fashionably but extravagantly overdressed man, a "howling swell".
- A 32-ounce ceramic, plastic, or stainless steel jug used to transport draft beer.