Blows up -- erupts violently when Conservative gets in (9)

I believe the answer is:

uppercuts

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'blows' is the definition.
(I know this)

'up erupts violently when conservative gets in' is the wordplay.
'violently' is an anagram indicator (letters are violently disrupted).
'when conservative' becomes 'c' (UK political abbreviation. I am not sure about the 'when' bit.).
'gets in' indicates putting letters inside.
'erupts' is an anagram of 'peruts'.
'peruts' enclosing 'c' is 'percuts'.
'up'+'percuts'='UPPERCUTS'

Can you help me to learn more?

(Another definition for uppercuts that I've seen is " (In boxing) blows to the chin".)

I've seen this clue in The Telegraph.

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