Restaurants or their customers (6)
I believe the answer is:
diners
'restaurants' is the definition.
(diner is a kind of restaurant)
I can't explain the rest of the clue.
Can you help me to learn more?
(Other definitions for diners that I've seen before include "Eaters of a meal" , "Restaurants" .)
I've seen this clue in The Mirror.
Want a hint initially instead of a full solution?
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