Brain Food

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Across
  1. 3. Racetrack circuit.
  2. 5. Crossword header.
  3. 7. What a dog does to a KONG.
  4. 8. First positive integer.
  5. 10. Actors Harris and Norton.
  6. 12. Dissolved Russian Federation. (abrv.)
  7. 14. Guitar hook-up.
  8. 16. No slack.
  9. 18. Possible result on the golf course.
  10. 19. "Stay in your ____."
  11. 20. Pond life.
  12. 23. Milk option.
  13. 24. Bagel topping.
  14. 27. How many it takes to tango.
  15. 29. Threw in the trash.
  16. 31. Ask from help from above.
  17. 33. Grape bearers.
  18. 35. Expires, in a way.
  19. 36. Gun the motor.
  20. 38. Rival.
  21. 39. Parks who took a seat to take a stand.
  22. 40. Sesame Street's resident grouch.
  23. 41. Dandruff source.
  24. 43. Mai ___ (festive cocktail).
  25. 45. Snow-day rides.
  26. 47. Supper, to some.
  27. 48. Mischief-maker from Marvel.
Down
  1. 1. Hurry along. (2 wrds.)
  2. 2. Breakfast side order. (2 wrds.)
  3. 4. Reverberates.
  4. 6. Booty boxes, matey.
  5. 9. Artificial colorings.
  6. 11. Protective canvas sheet.
  7. 13. Leak (in or out).
  8. 15. Engage in sport.
  9. 16. Silicon Valley's specialty.
  10. 17. Good place for a stud.
  11. 21. Hammers grabber.
  12. 22. Parents celebrated in May.
  13. 25. Sluggish animal.
  14. 26. Indicator of spoilage.
  15. 28. "Half glass full" sort of person.
  16. 30. Buys online.
  17. 32. time between anniversaries.
  18. 34. Green jewel.
  19. 37. What a stent may prevent.
  20. 42. Do very simple math.
  21. 43. Nesting site.
  22. 44. Burnt remains.
  23. 46. Ribbon-shaped fish.