Language models love (needless) brackets (7)
I believe the answer is:
slovene
'language' is the definition.
(Slovene is an example)
'models love needless brackets' is the wordplay.
'brackets' indicates the answer is hidden within the clue (the answer is contained or bracketed by the clue).
'SLOVENE' is hidden in the letters of 'models love needless'.
(Other definitions for slovene that I've seen before include "Language" , "One from Ljubljana" , "Southern European" , "Native of Ljubljana" , "Central European" .)