Kind of language used by the bloke with tea? (6)
I believe the answer is:
hebrew
'kind of language' is the definition.
(Hebrew is a language)
'the bloke with tea?' is the wordplay.
'the bloke' becomes 'he' ('he' refers to a man).
'with' says to put letters next to each other.
'tea?' becomes 'brew' (brew can informally mean a cup of tea).
'he'+'brew'='HEBREW'
'used by' acts as a link.
(Other definitions for hebrew that I've seen before include "Ancient Semitic language, used in modern version in Israel" , "National language of Israel" , "Jewish language" , "Official language of Israel" , "Tongue" .)