Crossword Genius

Paper without heading is a problem (5)

Ross

I believe the answer is:

issue

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'problem' is the definition.
(I've seen this before)

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

Can you help me to learn more?

(Other definitions for issue that I've seen before include "Bring out - children" , "Outcome - children" , "Result, outcome; topic" , "Topic (to be addressed)" , "Edition of a publication" .)

I've seen this clue in The Hindu.
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