Assembled before court ended, gutted (7)
I believe the answer is:
erected
'assembled' is the definition.
(I've seen this in another clue)
'before court ended gutted' is the wordplay.
'before' becomes 'ere' (poetic term).
'court' becomes 'ct' (abbreviation used in road names).
'gutted' says to hollow out the word (remove centre letters) (to gut something is to remove its insides).
'ended' with its centre removed is 'ed'.
'ere'+'ct'+'ed'='ERECTED'
(Other definitions for erected that I've seen before include "Constructed, built" , "Put up (a building)" , "Fixed up" , "No Clue" , "Set up" .)