Expert lauded outside court... (9)
I believe the answer is:
practised
'expert' is the definition.
(I've seen this before)
'lauded outside court' is the wordplay.
'lauded' becomes 'praised' (I've seen this before).
'outside' is an insertion indicator (some letters go outside others).
'court' becomes 'ct' (abbreviation used in road names).
'praised' enclosing 'ct' is 'PRACTISED'.
(Other definitions for practised that I've seen before include "Learned by repetition" , "Expert" , "Carried out or rehearsed" .)