Rest set out new ways (7)
I believe the answer is:
streets
'new ways' is the definition.
'streets' can be an answer for 'ways' (street is a kind of way). I am not certain of the 'new' bit.
'rest set out' is the wordplay.
'out' is an anagram indicator (out can mean wrong or inaccurate).
'rest'+'set'='restset'
'restset' with letters rearranged gives 'STREETS'.
Can you help me to learn more?
(Other definitions for streets that I've seen before include "Town thoroughfares" , "Built-up roads" , "Avenues" , "Ways" , "significantly ahead?" .)