Drive shown by politician in refurbished suite (7)
I believe the answer is:
impetus
'drive' is the definition.
(impetus is a kind of drive)
'politician in refurbished suite' is the wordplay.
'politician' becomes 'MP' (Member of Parliament).
'in' is an insertion indicator.
'refurbished' is an anagram indicator.
'suite' is an anagram of 'ietus'.
'mp' inserted inside 'ietus' is 'IMPETUS'.
'shown by' acts as a link.
(Other definitions for impetus that I've seen before include "Incentive - time's up (anag)" , "Force that moves something along" , "Drive" , "Catalyst" , "Driving force, momentum" .)