The most common and most likely answer to this crossword clue is the 4 plus 2 plus 9 letter word JOIN IN MATRIMONY
J
O
I
N
I
N
M
A
T
R
I
M
O
N
Y
Buddy explains!
The straight part
We know that "Wed" is the straight/definition part of the clue. The straight part is often a synonym or definition, in this case wed = join in matrimony.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.