The most common and most likely answer to this crossword clue is the 11 letter word BEWHISKERED
I've seen this crossword clue in Independent
B
E
W
H
I
S
K
E
R
E
D
More clues leading to the result BEWHISKERED
Buddy explains!
The straight part
We know that "No longer 26" is the straight/definition part of the clue. The straight part is often a synonym or definition, in this case no longer 26 = bewhiskered.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 BEWHISKERED mean?
BEWHISKERED adjective- Having whiskers