Crossword Genius

Acts intelligently and makes sandwiches (4,4,4)

Ross

I believe the answer is:

uses ones loaf

I'm a little stuck... Click here to teach me more about this clue!

'sandwiches' is the definition.
I don't know anything about this answer so I can't tell whether this works.

'acts intelligently and' is the wordplay.
I cannot quite see how this works, but
'acts' could be 'uses' (use is a kind of act) and 'uses' is located in the answer.
'and' could be 'n' (common abbreviation for 'and') and 'n' is found in the answer.
This may be the basis of the clue (or it may be nonsense).

'makes' is the link.

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I've seen this clue in the Evening Standard.
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