The most common and most likely answer to this crossword clue is the 9 letter word REDUNDANT
I've seen this crossword clue in Financial Times
R
E
D
U
N
D
A
N
T
More clues leading to the result REDUNDANT
- Unemployed debt-collector bitten by ruddy insect!
- Greyish-brown in colour, insect is unwanted
- Cherry, nut and bananas not required
- Superfluous revolutionary and German worker
- Superfluous, and under changes with time
- Communist and German colonist no longer needed
- Understand bar staff’s first, sadly, to become superfluous
- Communist and German worker not needed
- Ranted about keeping horse when no longer needed
- Edition in series on poet largely superfluous
Buddy explains!
The straight part
We know that "unwanted" is the straight/definition part of the clue. The straight part is often a synonym or definition, in this case unwanted = redundant.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 REDUNDANT mean?
REDUNDANT adjective- Superfluous; exceeding what is necessary.
- (of words, writing, etc) Repetitive or needlessly wordy.
- Dismissed from employment because no longer needed.
- Duplicating or able to duplicate the function of another component of a system, providing backup in the event the other component fails.