Regular features in tabloid describing more of the same from Simon Mayo (5)

I believe the answer is:

aioli

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'mayo' is the definition.
Both the answer and definition are singular nouns.
Maybe there's an association between them I don't understand?

I cannot understand how the remainder of the clue works.

Can you help me to learn more?

(Other definitions for aioli that I've seen before include "Dressing" , "Garlic 9" , "11 [SAUCE]" , "Garnish" , "Mayo, in part?" .)

I've seen this clue in The Independent.

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