Chortle or guffaw (5)
I believe the answer is:
laugh
This clue is a double definition.
'chortle' is the first definition.
(I've seen this before)
'guffaw' is the second definition.
(I've seen this in another clue)
(Other definitions for laugh that I've seen before include "Sound amused" , "Fun person" , "Guffaw" , "Show mirth" , "scream?" .)