The most common and most likely answer to this crossword clue is the 5 letter word AWING
A
W
I
N
G
More clues leading to the result AWING
Buddy explains!

The straight part
We know that "Bowling over" is the straight/definition part of the clue. The straight part is often a synonym or definition, in this case bowling over = awing.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 AWING mean?
AWING adverb- On the wing; flying; fluttering.
- To inspire fear and reverence in.
- To control by inspiring dread.