Crossword Genius

Fighting Conservative MP's in again surprisingly (8)

Ross

I believe the answer is:

campaign

I'm a little stuck... Click here to teach me more about this clue!

'fighting' is the definition.
The definition and answer can be both acts as well as being singular nouns.
Maybe they are linked in a way I don't understand?

'conservative mp's in again surprisingly' is the wordplay.
'conservative' becomes 'C' (UK political abbreviation).
'in' means one lot of letters goes inside another.
'surprisingly' indicates anagramming the letters (a surprising ordering of the letters).
'again' anagrammed gives 'aaign'.
'mp' placed inside 'aaign' is 'ampaign'.
'c'+'ampaign'='CAMPAIGN'

Can you help me to learn more?

(Other definitions for campaign that I've seen before include "Series of military operations intended to achieve a goal" , "Action organised for cause" , "Series of operations, military or advertising" , "Series of activities to attain a goal" , "battle" .)

I've seen this clue in The Daily Mail.
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