Sanitises, first, camera lenses around the beginning of April (8)

I believe the answer is:

cleanses

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'sanitises' is the definition.
I can't judge whether this defines the answer.

'first camera lenses around the beginning of april' is the wordplay.
'first camera' becomes 'c' (1st letter of 'camera').
'around' is an insertion indicator.
'the beginning of' suggests taking the first letters.
The initial letter of 'april' is 'a'.
'lenses' placed around 'a' is 'leanses'.
'c'+'leanses'='CLEANSES'

Can you help me to learn more?

(Another definition for cleanses that I've seen is " Removes dirt".)

I've seen this clue in the Sydney Morning Herald.

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