Saint moved tree in road (6)
I believe the answer is:
street
'road' is the definition.
(I know that road can be written as street)
'saint moved tree in' is the wordplay.
'saint' becomes 'st' (abbreviation).
'moved' indicates an anagram.
'in' is an insertion indicator.
'tree' is an anagram of 'reet'.
'st' placed inside 'reet' is 'STREET'.
(Other definitions for street that I've seen before include "Perry's Della" , "Thoroughfare lined with buildings" , "See 17" , "City thoroughfare" , "Public road in a conurbation" .)