European/American menu ok for dinner? (7)

I believe the answer is:

eatable

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'dinner?' is the definition.
The answer and definition can be both things that one consumes for nourishment as well as being singular nouns.
Maybe they are linked in a way I don't understand?

I don't understand how the remainder of the clue works.

Can you help me to learn more?

(Other definitions for eatable that I've seen before include "May be consumed" , "Edible" , "Fit for consumption" , "OK to swallow" , "Digestible" .)

I've seen this clue in The Independent.

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