Cryptic NFL pt Deux

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Across
  1. 4. He's an amorous young farm animal despite being castrated (5,7)
  2. 7. Songbird peculiar, rarely murky (5,6)
  3. 8. I heard Isaac wasn't excited when he discovered gravity (3,6)
  4. 9. Historic rival wouldn't want to go to NY. Drop all in disarray (4,7)
  5. 10. German affirms yes - they are great chilis! (7,7)
  6. 13. Loudly encouraging my lads to avoid a bogey (5,7)
  7. 16. Normally he eats QBs, but weirdly Tim has Quorn (6,5)
  8. 17. Gorilla encountered bovine youngster (2,7)
  9. 19. Mr Banderas is inside famous detective initially (8,6)
  10. 22. Let's have a spliff with fragrant herb adorning (2,6)
  11. 23. I heard he was a little green alien? No, a grey! (4,4)
  12. 24. Grizzly only 12th man in cricket... (6,6)
  13. 26. The answer is in how many banjos Hal lent me (4,5)
  14. 27. Ms Andress confusedly surrounds French island (5,7)
  15. 28. Disheveled Knight has old Madras (3,7)
  16. 29. Church of Scotland? (9,4)
  17. 31. I'm with him down by the schoolyard, but I've also got a thing going on with his mother (5,5)
  18. 32. Ruin ovine monarch (4,6)
Down
  1. 1. Ballet dress as well, turning South into right-angled junction (4,6)
  2. 2. Drunk, I love red lineman (2,6)
  3. 3. Ranty Tam is agitated (4,4)
  4. 5. Mafia boss is all about Nelly hit with power tools for smoothing corner (5,7)
  5. 6. In northern city, Great conqueror is on t' mat, in pieces (9,8)
  6. 10. A cup of coffee in US before we head underground (3,6)
  7. 11. Sounds like loverboy is a snitch (5,5)
  8. 12. Safe to put on toast? How about some jam a la damson (5,5)
  9. 14. Rather abrupt is Old Testament books (6,6)
  10. 15. Post-war baby audibly surprised to learn he has a boy of his own (6,7)
  11. 18. The sound ringing out to herald the era of Bulgarian currency? (6,4)
  12. 20. What's that cartoon horseman's first name dad? (2,7)
  13. 21. ...Cake-maker unsure if he'll do the same (5,8)
  14. 25. Champion of the World, fix Strictly dancer Ms Jordan (5,8)
  15. 30. Sounds like a sloppy sandwich preparing cocktails (3,5)