The most common and most likely answer to this crossword clue is the 9 letter word MISERABLE
I've seen this crossword clue in Independent
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More clues leading to the result MISERABLE
- Dreary strips gone over in race
- Wretchedly unhappy blame rise in disorder
- Unhappy Lib Dem politician, in 2015 losing seat and pessimistic ultimately
- Base the next on what might be of use — it’s flawless
- Unhappy near fellow that’s skilful
- Skinflint fit to be unhappy
- Unhappy, this writer’s upset over Queen wearing fur
- Contemptible money-grubber’s up to it
- School boy taking ages in long distance race is dejected
- Less out of French musical — it's wretched
Buddy explains!

The straight part
We know that "Unhappy" is the straight/definition part of the clue. The straight part is often a synonym or definition, in this case unhappy = miserable.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 MISERABLE mean?
MISERABLE noun- A miserable person; a wretch.
- In a state of misery: very sad, ill, or poor.
- Very bad (at something); unskilled, incompetent.
- Wretched; worthless; mean.
- Causing unhappiness or misery.
- Avaricious; niggardly; miserly.