The most common and most likely answer to this crossword clue is the 7 letter word GIGGLES
I've seen this crossword clue in The Guardian
G
I
G
G
L
E
S
More clues leading to the result GIGGLES
Buddy explains!

The straight part
We know that "laughs" is the straight/definition part of the clue. The straight part is often a synonym or definition, in this case laughs = giggles.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 GIGGLES mean?
GIGGLES noun- A high-pitched, silly laugh.
- Fun; an amusing episode.
- To laugh gently or in a high-pitched voice; to laugh in a silly or giddy way.
- (with "the") An attack of uncontrolled giggling.