Scratched decks over there, ignoring first kid's intrusive knock (7)
I believe the answer is:
scraped
'scratched' is the definition.
('scrape' can be a synonym of 'scratch')
I can't explain the rest of the clue.
Can you help me to learn more?
(Other definitions for scraped that I've seen before include "Grazed; scratched" , "Abraded" , "Slightly damaged" .)