Children that may be well read? (5)

I believe the answer is:

issue

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'children' is the definition.
(issue can mean someone's offspring)

I don't understand the rest of the clue.

(Other definitions for issue that I've seen before include "Contentious subject" , "Offspring; publish" , "Offspring; problem" , "Topic; give out" , "that may be taken where there's disagreement?" .)

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

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