Sarcasm (5)
'sarcasm' is the definition.
(I know that sarcasm can be written as irony)
This is all the clue.
(Other definitions for irony that I've seen before include "Kind of sarcasm, sounds metallic" , "Sarcastic use of praise" , "Paradoxical sarcasm" , "Socrates used it" , "Sarcastic humour" .)
'sarcasm' is the definition.
(thesaurus)
This is all the clue.
(Other definitions for wit that I've seen before include "Intelligence; humorist" , "Nous" , "clever speaker" , "Joker" , "Form of humour" .)