The most common and most likely answer to this crossword clue is the 8 letter word JOSTLING
I've seen this crossword clue in The Daily Telegraph
J
O
S
T
L
I
N
G
More clues leading to the result JOSTLING
Buddy explains!

The straight part
We know that "elbowing" is the straight/definition part of the clue. The straight part is often a synonym or definition, in this case elbowing = jostling.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 JOSTLING mean?
JOSTLING verb- To bump into or brush against while in motion; to push aside.
- To move through by pushing and shoving.
- To be close to or in physical contact with.
- To contend or vie in order to acquire something.
- To pick or attempt to pick pockets.
- An act of jostling; a push or shove.