Advances where parents say children shouldn't play (7)

I believe the answer is:

inroads

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'advances' is the definition.
(to make inroads is to make progress or advances)

I can't explain the rest of the clue.

(Other definitions for inroads that I've seen before include "(Make) raids, intrusions (into)" , "Ordains as offensives" , "raid" , "Hostile incursions" , "Progress" .)

I've seen this clue in The Telegraph.

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