The sort of language used in court? (7)
I believe the answer is:
romance
I believe this clue is a double definition.
'the sort of language' is the first definition.
'court?' is the second definition.
('romance' can be a synonym of 'court')
'used in' acts as a link.
(Other definitions for romance that I've seen before include "Novel - love story" , "Novel (or often its main theme)" , "Various languages such as French" , "mysterious quality" , "Group of languages" .)