Cryptic crossword from CR13 and 15

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Across
  1. 3. Perfect thought, end of April (5)
  2. 6. The old tree contains a member of this room. (4)
  3. 8. Confess and let in (5)
  4. 11. Something of value, sounds like a full collection (5)
  5. 13. Useful, fits in a glove at the end of the day (5)
  6. 15. Have a party for the confused car beetle (9)
  7. 18. Terrible and unfathomable as my lab (7)
  8. 19. Sincere sense organ and bird home (7)
  9. 21. He played golf backwards to whip it. (4)
  10. 23. Does she eat one during her Youtime?(3)
  11. 24. Stop, we hear we need a rest. (5)
  12. 25. Planes use them in the ultra dark (5)
  13. 27. Young nocturnal creature in meadow, let out (5)
Down
  1. 1. Don’t go left, yes that’s correct! (5)
  2. 2. The traps came back as a part of a watch (5)
  3. 4. Viper illusion conceals danger (5)
  4. 5. The rock group was not allowed to enter. (4)
  5. 7. Turn stone into music (5)
  6. 9. Discovers escapism in poetry (6)
  7. 10. Was seated with vase, out of this world (6)
  8. 12. Evidence of injury allowed redness (7)
  9. 14. Courage shown in mariner venture (5)
  10. 16. Bird under par on a golf course (5)
  11. 17. Quick to reframe from consuming for a while(4)
  12. 20. Sounds like a drink for the golf course (3)
  13. 22. Something huge in a Belgian town (5)
  14. 26. Edible nut contained in meal, Monday (6)
  15. 28. Sounds like a number you have already consumed.(5)