The most common and most likely answer to this crossword clue is the 8 letter word GUFFAWED
G
U
F
F
A
W
E
D
Buddy explains!
The straight part
We know that "laughed loudly" is the straight/definition part of the clue. The straight part is often a synonym or definition, in this case laughed loudly = guffawed.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 GUFFAWED mean?
GUFFAWED verb- To laugh boisterously.