The most common and most likely answer to this crossword clue is the 9 letter word CONFINING
C
O
N
F
I
N
I
N
G
Buddy explains!

The straight part
We know that "Limiting" is the straight/definition part of the clue. The straight part is often a synonym or definition, in this case limiting = confining.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 CONFINING mean?
CONFINING verb- To restrict; to keep within bounds; to shut or keep in a limited space or area.
- To have a common boundary; to border; to lie contiguous; to touch; followed by on or with.
- Limiting; restrictive