Law created by a court? (3)
I believe the answer is:
act
'law' is the definition.
(I've seen this in other clues)
'by a court?' is the wordplay.
'by' means one lot of letters go next to another.
'court?' becomes 'ct' (abbreviation used in road names).
'a' next to 'ct' is 'ACT'.
'created' acts as a link.
(Other definitions for act that I've seen before include "Take steps" , "Play (a role)" , "Do something (on stage?)" , "Parliamentary decree" , "Bill successfully prosecuted" .)