Road-works in order (6)
I believe the answer is:
ordain
'order' is the definition.
('ordain' can be a synonym of 'order')
'road-works in' is the wordplay.
'works' indicates an anagram.
'road' with letters rearranged gives 'orda'.
'orda'+'in'='ORDAIN'
(Other definitions for ordain that I've seen before include "Inroad (anag.)" , "Elevate or appoint to priesthood" , "Destine" , "Confer holy orders upon" , "Appoint as priest" .)