The most common and most likely answer to this crossword clue is the 8 plus 6 letter word HUMPBACK BRIDGE
I've seen this crossword clue in The Times
H
U
M
P
B
A
C
K
B
R
I
D
G
E
Buddy explains!
The straight part
We know that "means to get over" is the straight/definition part of the clue. The straight part is often a synonym or definition, in this case means to get over = humpback bridge.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.