Syrup large American wears in court? On the contrary (7)
I believe the answer is:
linctus
'syrup' is the definition.
(thesaurus)
'court? on the contrary' is the wordplay.
'court?' becomes 'ct' (abbreviation used in road names).
'on' is an insertion indicator.
'the contrary' becomes 'linus' (I can't justify this - if you can you should give a lot more credence to this answer).
'ct' going inside 'linus' is 'LINCTUS'.
'large american wears in' acts as a link.
I am not very happy about this link. Some or all of it may be part of another bit of the clue.
Can you help me to learn more?
(Other definitions for linctus that I've seen before include "Syrup that may see a cough off" , "The prescription" , "Thick cough mixture" , "Soothing drink" , "Cough medicine" .)