The most common and most likely answer to this crossword clue is the 7 letter word CAROMED
C
A
R
O
M
E
D
Buddy explains!

The straight part
We know that "Glanced" is the straight/definition part of the clue. The straight part is often a synonym or definition, in this case glanced = caromed.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 CAROMED mean?
CAROMED verb- To make a carom (shot in billiards).
- To strike and bounce back; to strike (something) and rebound.