The most common and most likely answer to this crossword clue is the 4 plus 3 plus 2 letter word LAST MAN IN
I've seen this crossword clue in Independent
L
A
S
T
M
A
N
I
N
More clues leading to the result LAST MAN IN
Buddy explains!
The straight part
We know that "No. 11" is the straight/definition part of the clue. The straight part is often a synonym or definition, in this case no. 11 = last man in.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.