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Doctor eats with mother occasionally in here (9)

Ross

I believe the answer is:

estaminet

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'here' is the definition.
Although both the answer and definition are singular nouns, I can't understand how they can define each other.

'doctor eats with mother occasionally in' is the wordplay.
'doctor' is an anagram indicator.
'with' is a charade indicator (letters next to each other).
'occasionally' means one should take alternating letters (letters taken at regular intervals or occasions).
The alternating letters of 'mother' are 'mte'.
'mte'+'in'='mtein'
'eats' put after 'mtein' is 'mteineats'.
'mteineats' is an anagram of 'ESTAMINET'.

Can you help me to learn more?

(Other definitions for estaminet that I've seen before include "Small French cafe" , "bistro" , "Neat items (anag) - small bar or cafe" , "French restaurant" , "provides food and drink" .)

I've seen this clue in The Guardian.
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