Judge getting in way disarranged royal court (2,6)
I believe the answer is:
st jamess
'royal court' is the definition.
(the UK royal court is the Court of St James's)
'judge getting in way disarranged' is the wordplay.
'judge' becomes 'j'.
'getting in' is an insertion indicator.
'way' becomes 'st' (**).
'disarranged' becomes 'amess' (a mess).
'st'+'amess'='stamess'
'j' going within 'stamess' is 'ST JAMESS'.
(Other definitions for st jamess that I've seen before include "London park" , "London Square" .)