Across:
1. Since cars hardly worked in nineteen nineties, originally they made lots of bicycles (7)
5. Quiet annoying sound, or quite annoying sound? (7)
9. Original poster "Fourth Estate or Agent of Tyranny?" (9)
10. More faithful model king perhaps, but lacking heart (5)
11. I got trapped in Sydney suburb, brimming with testosterone for the most part (6)
12. College groups from the east muddled his 6s, in the main (8)
14. Goes fast down hill, cycling for minimal contact (4)
15. Eastern religous woman meeting with western intelligence agency - sometimes interesting talks follow, clearly stated (10)
18. Meeting with vendor, use confusion about last letter (10)
20. Cycling, ascended 6 which 25-1 down set down on 12/2/2001 (4)
23. It takes a lot of balls to be one of these judges, clinging to good while accepting both sides without hint of derision (8)
24. Stockade, impromptu, for free work? (Utopia, ultimately?) (6)
26. Rush and rush to get back behind lines, losing seconds (5)
27. Awkward line agent muffed (9)
28. Call rock band seen in Animal House (7)
29. Returning 25 8's edge (rarefied), initially attempt this risky undertaking? (7)
Down:
1. Should he stick to his last shake, more shaken? (9)
2. see 23 down
3. Ladies ruined standards (6)
4. Modern outfit sported by backward peasant (4)
5. Deviously enter with opium in lining in trunk (10)
6. Lunatic adores it, 4 studies it (8)
7. Visitor out! Stir brewing... (7)
8. Fear the bare dirt (5)
13. see 23 down
16. Start to dream straight away, having night out with a faraway air (9)
17. Put into service, do deeply wrong (8)
19. Country, one repeatedly involved in range of problems (7)
21. Returning 25 8's edge (rarefied), initially perform and perform again in simulation (7)
22. Milieu generously welcomed Dr 1 across (6)
23,2,13. Academic establishment behind 25-1 down can spend money on family's shining light... I have to sit in line! (5 7 10)
25. Originally, "25 8 6 18", later also named for 22 1 down (4)
Solution:
SCHWINN=PRATTLE|
H=O=D=A=E=S=O=A|
OPPRESSOR=TRUER|
E=K=A=A=I=E=R=T|
MAINLY=STARFISH|
A=N=S=U=O=O=S==|
KISS=ENUNCIATED|
E===D=I=E=D===I|
RENDEZVOUS=EROS|
==I=P=E=M=E=E=T|
JUGGLERS=EUREKA|
O=E=O=S=N=G=N=N|
HURRY=INELEGANT|
N=I=E=T=A=N=C=L|
STANDBY=REENTRY|
Name: 889 - Last Shake
Author: by BenDR

Annos-Across:
1. acrostic
5. P + RATTLE
9. OP + PRESS + OR
10. T + RU(l)ER
11. MA(I)NLY
12. rev( FRATS ) + *HIS
14. cyc( SKIS )
15. E NUN + CIA + TED
18. Z in *(VENDOR USE)
20. cyc( ROSE )
23. JU(d)G(G)(L)E(R)S
24. tails &lit
26. rev( RU(s)H ) + RY
27. *(LINE AGENT)
28. *BAND in STY
29. rev( acrostic N E E R ) + TRY , ext def
Annos-Down:
1. *(SHAKE MORE)
3. *LADIES
4. rev tel (pe)ASAN(t) <
5. *(ENTER OPIUM)
6. *(ADORES IT)
7. *(OUT STIR)
8. (f)EAR TH(e)
16. D + I(n)STANTLY
17. *(DO DEEPLY)
19. I,I in *RANGE
21. rev( acrostic N E E R ) + ACT
22. tel (mili)EU GENE(rously)
23,2,13. JOHN + SHOP + KIN + SUN + I'VE + R(SIT)Y
25. acrostic, ext def
Defs-Across:
1. they made lots of bicycles
5. quite annoying sound
9. Agent of Tyranny
10. More faithful
11. for the most part
12. 6s, in the main
14. minimal contact
15. clearly stated
18. Meeting
20. 6 which 25-1 down set down on 12/2/2001
23. It takes a lot of balls to be one of these
24. Stockade, impromptu, for free work? (Utopia, ultimately?)
26. Rush
27. Awkward
28. Call
29. risky undertaking?
Defs-Down:
1. Should he stick to his last
3. standards
4. Modern outfit
5. lining in trunk
6. 4 studies it
7. Visitor
8. dirt
16. with a faraway air
17. Put into service
19. Country
22. Dr 1 across
23,2,13. Academic establishment behind 25-1 down