Guffaw
'guffaw' is the definition.
(synonyms)
This is the entire clue.
'guffaw' is the definition.
(I've seen this in another clue)
This is the entire clue.
(Other definitions for roar that I've seen before include "Bawl, bellow" , "Lion's cry" , "Make a loud noise" , "Leonine bellow" , "Jaguar, for example, emits this" .)