The most common and most likely answer to this crossword clue is the 11 letter word REGRETTABLE
I've seen this crossword clue in The Times
R
E
G
R
E
T
T
A
B
L
E
More clues leading to the result REGRETTABLE
- Unhappy teetotaller opening beer and lager for refreshment
- Sad, seeing the Spanish repeatedly beat Germany up
- Resistance bird’s shown on feeding station is to be deplored
- Unfortunate upset: the Spanish pummel Germany
- Sad as the Spanish repeatedly beat Germany back
- Lager better in a cocktail? It’s too bad
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 = regrettable.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 REGRETTABLE mean?
REGRETTABLE adjective- Able to be regretted, especially deserving of regret.