Leaders of Metz enterprise rejected a French tariff (4)

I believe the answer is:

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

'leaders of metz enterprise rejected a french' is the wordplay.
'leaders of' indicates taking the first letters.
'rejected' says the letters should be written in reverse.
'a french' becomes 'un' ('a' in French).
The first letters of 'metz enterprise' is 'me'.
'un' written backwards gives 'nu'.
'me'+'nu'='MENU'

(Other definitions for menu that I've seen before include "List of items available in restaurant (4)" , "List of dishes available in restaurant" , "Tariff" , "Carte du jour" , "list of available courses" .)

I've seen this clue in The Independent.

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