Cryptic crossword

ACROSS

1. Fight case oddly presented about sexual assault (6)

4. Contemptible person in group with strange religious beliefs (6)

8. Rises wrongfully given in high school (5)

9. One treated tension with an injection of right supplement (9)

11. Plaster and first lot of adhesive included in tender (7)

12. Rate poorly a layer made of clay (7)

13. Upward slope is in middle of street (4)

14. Objects to worthless stuff penned by troublesome people (8)

17. They check opening of big storage units (8)

18. Some eat a corn-based Mexican dish (4)

22. Shooter moved behind vacated apartment to some degree? (1,6)

23 & 10 Down. Ecstatic rowdy maligned inn once outside (2,5,4)

24. Married users are not normally assessors (9)

25. Lifter competed in brace with no support (5)

26. One begins to work with well-behaved children (6)

27. Railway trucks move from side to side on final section of tracks (6)

DOWN

1. Austrian composer disturbed brutes outside church (8)

2. Enemy’s front line, deployed in divisions, gives in (7)

3. Computer language like “C” adopted by close associate (6)

4. TV detective linked person to crimes erroneously (9,5)

5. Bombshell, right, is located in especially-designed purse (8)

6. Cold chisel cracked chestnuts (7)

7. Troubled friend looks up contents of verse for discoverer’s claim (7,7)

10. See 23 Across

15. Officer reassigned outside university to set locks (8)

16. Central feature of ice age? (8)

17. Bank added to profit an advantageous purchase (7)

19. Fruit and eggs served up on mashed pieces of a cod (7)

20. Backing of millions given to remote agricultural centre (4)

21. Plant’s account accessed by a spy network in America (6)