Back To School

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Across
  1. 3. I sound like pool eyewear, but I'm even more useful to you.
  2. 4. Related to learning or schooling
  3. 5. To make or get ready
Down
  1. 1. My name suggests you should be taking me to your domicile and labouring on me.
  2. 2. One who disseminates knowledge
  3. 6. Lead, mechanical, coloured