The most common and most likely answer to this crossword clue is the 11 letter word INCONGRUOUS
I've seen this crossword clue in Financial Times
I
N
C
O
N
G
R
U
O
U
S
Buddy explains!

The straight part
We know that "out of place" is the straight/definition part of the clue. The straight part is often a synonym or definition, in this case out of place = incongruous.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 INCONGRUOUS mean?
INCONGRUOUS adjective- Not similar or congruent; not matching or fitting in.
- Of two numbers, with respect to a third, such that their difference can not be divided by it without a remainder.