The most common and most likely answer to this crossword clue is the 3 plus 2 plus 10 letter word OUT OF COMMISSION
I've seen this crossword clue in The Daily Telegraph
O
U
T
O
F
C
O
M
M
I
S
S
I
O
N
More clues leading to the result OUT OF COMMISSION
Buddy explains!
The straight part
We know that "Unable to work normally/no longer having officer status" is the straight/definition part of the clue. The straight part is often a synonym or definition, in this case unable to work normally/no longer having officer status = out of commission.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.