Motivation for politician to get European suit worn out (7)
I believe the answer is:
impetus
'motivation' is the definition.
(impetus can mean a motivation or stimulus)
'politician to get european suit worn out' is the wordplay.
'politician' becomes 'MP' (Member of Parliament).
'to get' is a charade indicator (letters next to each other).
'european' becomes 'E' (abbreviation e.g. EU).
'worn' is an anagram indicator (worn can mean damaged).
'out' indicates putting letters inside.
'suit' with letters rearranged gives 'itus'.
'mp'+'e'='mpe'
'mpe' placed into 'itus' is 'IMPETUS'.
'for' is the link.
(Other definitions for impetus that I've seen before include "Incentive - time's up (anag)" , "influence" , "Incentive, stimulus" , "Drive" , "Moving force" .)