Had a laugh when jilted around the third of July (8)
I believe the answer is:
chuckled
'had a laugh' is the definition.
(I've seen this before)
'jilted around the third of july' is the wordplay.
'jilted' becomes 'chucked' (chuck can mean to jilt or dump).
'around' indicates putting letters inside.
'the third of july' becomes 'l' (3rd letter of 'july').
'chucked' enclosing 'l' is 'CHUCKLED'.
'when' acts as a link.
(Other definitions for chuckled that I've seen before include "Had a laugh" , "Chortled" , "Laughed quietly" .)