Type inclined to be emphatic (6)

I believe the answer is:

italic

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'type' is the definition.
(kind of lettering)

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

(Other definitions for italic that I've seen before include "Sloping (writing)" , "A letter in sloping type" , "Printed in a sloping type" , "more oblique than Roman" , "Print style used for emphasis, titles of books, etc" .)

I've seen this clue in The Globe and Mail.

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