Oily solvent serves as a disinfectant (5)

I believe the answer is:

lysol

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

'a disinfectant' is the definition.
(I've seen this before)

'oily solvent serves' is the wordplay.
'LYSOL' is hidden within the letters.
However, I am uncertain how this is indicated.

'as' is the link.

Can you help me to learn more?

(Another definition for lysol that I've seen is " disinfectant".)

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

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