Somewhat absurd, using this language (4)
I believe the answer is:
urdu
'language' is the definition.
(Urdu is an example)
'somewhat absurd using this' is the wordplay.
'somewhat' indicates the answer is hidden within the clue.
'URDU' can be found hidden inside 'absurd using this'.
(Other definitions for urdu that I've seen before include "Language akin to Hindi" , "Form of Hindustani" , "Asian language written in Arabic script" , "speech" , "An official language of Pakistan related to Hindi" .)