Chokes on jokes (4)
I believe the answer is:
gags
I believe this clue is a double definition.
'chokes' is the first definition.
('gag' can be a synonym of 'choke')
'jokes' is the second definition.
(gagging is a kind of joking)
'on' is the link.
(Other definitions for gags that I've seen before include "Muffles with slangy jokes" , "Muzzles or jokes." , "Jokes - silences" , "Jokes; chokes" , "Prevents from speaking the jokes" .)