That is surrounding politician with routine resistance (9)

I believe the answer is:

impedance

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'resistance' is the definition.
(I know that resistance can be written as impedance)

'that is surrounding politician with routine' is the wordplay.
'that is' becomes 'ie' (short for Latin 'id est', 'that is').
'surrounding' is an insertion indicator.
'politician' becomes 'MP' (Member of Parliament).
'with routine' becomes 'dance' (I am not sure about this - if you are sure you should believe this answer much more).
'ie' going around 'mp' is 'impe'.
'impe'+'dance'='IMPEDANCE'

Can you help me to learn more?

I've seen this clue in The Daily Express.

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