Instal app streaming surgical procedure (6,3)

I believe the answer is:

spinal tap

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'surgical procedure' is the definition.
Both the definition and answer are singular nouns.
Perhaps they are linked in a way I don't understand?

'instal app streaming' is the wordplay.
'streaming' is an anagram indicator.
'instal'+'app'='instalapp'
'instalapp' anagrammed gives 'SPINAL TAP'.

Can you help me to learn more?

I've seen this clue in The Telegraph.

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