Across:
   1. They are often seen 5 down 18 across and rarely head for safer bit (5 2 1 7)
   9. Proposition male, confused about his sex (5)
  10. Work too menial for having feelings (9)
  11. Bizarre dream surrounded by strange stark words like 14 (10)
  12. In time, regret many such words spoken in jest (4)
  14. New lover, new brand of cosmetics (6)
  16. Academic poetry evoking cosmos (8)
  18. Unusually, three got into union (8)
  19. Lubrication fixed gear and points (6)
  22. Poles ignored, being nicely fit but not looking good (4)
  23. Maybe Windsor's hope wore us out (10)
  26. Having caring one about can be bliss! (9)
  27. Such a look warned about lacking energy? (5)
  28. It gets 19, to avoid bearing problems perhaps (3 7 5)
Down:
   1. Help runner to take second (7)
   2. Strum banjo to provide music for dance (5)
   3. Those being punished put a lid on pride upon boarding ship (10)
   4. Of late development or of early development? (6)
   5. Opening of filter securing fibrous material (8)
   6. A variable is used to label this line (4)
   7. In US, recognise music with unsolicited monetary rewards (9)
   8. Replace experience once again with eager beginner (7)
  13. Eclipse extraordinary, so who raved? (10)
  15. Ace living recklessly to get attention (9)
  17. Criticise fool taking one back (8)
  18. One travelling throughout our isthmus (7)
  20. Relent! A terrible price for freedom is such 15 (7)
  21. Decorate Yardbirds guitarist who hugged Sullivan (6)
  24. Application of cautious agenda (5)
  25. Republicans question republic (4)