Senate call for change -- and a fresh start (5,5)
I believe the answer is:
clean slate
'a fresh start' is the definition.
('clean slate' can be a synonym of 'fresh start')
'senate call for change' is the wordplay.
'for change' indicates an anagram (I've seen this in other clues).
'senate'+'call'='senatecall'
'senatecall' is an anagram of 'CLEAN SLATE'.
'and' acts as a link.
(Other definitions for clean slate that I've seen before include "new start" , "good record" , "A record without dishonour" , "making a fresh start?" .)