More oats may be ordered for small restaurants (3,5)

I believe the answer is:

tea rooms

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'restaurants' is the definition.
(tea room is a kind of restaurant)

'more oats may be' is the wordplay.
'may be' indicates an anagram.
'more'+'oats'='moreoats'
'moreoats' is an anagram of 'TEA-ROOMS'.

'ordered for small' acts as a link.
This may not be correct. Some or all of it may be part of another bit of the clue.

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