House officer starts off applying laparascope to do this (8)

I believe the answer is:

internal

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'do this' is the definition.
The definition suggests a singular noun but the answer is not.

'house officer starts off applying laparascope' is the wordplay.
'house officer' becomes 'intern' (I've seen this before).
'starts off' suggests taking the first letters.
The first letters of 'applying laparascope' is 'al'.
'intern'+'al'='INTERNAL'

'to' acts as a link.

Can you help me to learn more?

(Other definitions for internal that I've seen before include "Located inward" , "Inside the body" , "Domestic" , "Located inside" , "Within the body" .)

I've seen this clue in The Times.

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