The most common and most likely answer to this crossword clue is the 8 letter word RUBBISHY
I've seen this crossword clue in The Times
R
U
B
B
I
S
H
Y
More clues leading to the result RUBBISHY
- Awfully poor mistake getting in the red
- Worthless blunder set in stone
- Mistake wearing jewel that’s cheap?
- Awful mistake set in stone
- Mistake wearing gemstone of poor quality
- Worthless girl hugging senior minister out of work
- gemstone contains fault
- Cleric short of work wears precious stone that’s worthless
- Worthless hubris, boy's heartless, deranged
- Unsatisfactory massage by one timid boy at the centre
Buddy explains!

The straight part
We know that "Awful" is the straight/definition part of the clue. The straight part is often a synonym or definition, in this case awful = rubbishy.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 RUBBISHY mean?
RUBBISHY adjective- Strewn with litter.
- Of little or no value; worthless.