Right adopting politician with knack for successful transfer of power? (4,5)
I believe the answer is:
jump start
'successful transfer of power?' is the definition.
(process of transferring power to a vehicle)
'right adopting politician with knack' is the wordplay.
'right' becomes 'just' (associated in meaning).
'adopting' means one lot of letters goes inside another.
'politician' becomes 'mp' (Member of Parliament).
'with' means one lot of letters go next to another.
'knack' becomes 'art' (both can mean a skill or talent).
'just' enclosing 'mp' is 'jumpst'.
'jumpst'+'art'='JUMP-START'
'for' is the link.
(Other definitions for jump start that I've seen before include "Help for stranded drivers" , "get car going" , "give added impetus" , "get going on a cold morning" .)