The most common and most likely answer to this crossword clue is the 9 letter word UNGALLANT
I've seen this crossword clue in The Guardian
U
N
G
A
L
L
A
N
T
Buddy explains!

The straight part
We know that "Showing no 14/Showing no 14" is the straight/definition part of the clue. The straight part is often a synonym or definition, in this case showing no 14/showing no 14 = ungallant.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 UNGALLANT mean?
UNGALLANT adjective- Not gallant; ignoble, dishonourable, unvaliant.