Across:
   1. Generously approximate as 10? (7)
   5. Dress us fantastically for Geisel's presentation (2 5)
   9. Point of anecdotal evidence (3)
  10. In music, a rollicking way to celebrate 18 (5)
  11. Get better at crossword (English) (5)
  12,6dn. At 18, he shuns party, e.g. zero beers once drunk! (8 7)
  13. From east, impish animal was 6 across, of mysterious origins (6)
  15. 4 of those in principle (5)
  17. My second turned and hit Richard; not difficult matching both sides (9)
:  19. Cook up storm: boil food that's usually baked (9)
  21. Star took in a king (5)
  22. 5 creation getting really 24 near 18 (humble origins) (6)
  23. When girls get mixed up with men, they can ruin everything! (8)
  26. Lazier elements destroying large nation (5)
  27. Into faith in Durga? (5)
  28. Point of claimant's evidence (3)
  29. You might at 18, with serves so crazy, and at taking seconds (7)
  30. Schemes say a setter must alternate elements (7)
Down:
   1. Saviours, having erred, seem dubious (9)
   2. With leader dismissed, BBC let loose (5)
   3. A 18 10 author sick? End suffering! (7)
   4. A different twist for each telling of the story? (10)
   5. Almost owed fifty-fifty for flat (4)
   6. see 12 across
   7. Rupee down alarmingly, with no engine to drive it (9)
   8. 18 ultimately gets its name and its origins somewhere in the middle east (5)
  14. Awesome ratings around "2001" gets them coming in (10)
  16. Used without end, this could make birch die (9)
  18. This scam active around year's end! (9)
  20. Team built around charismatic revolutionary, a handy weapon in the jungle (7)
  21. Such sweet things that 12 6 said (7)
  22. Zooming failed on bits dropping out in device (5)
  24. One judge upset (5)
  25. Talk and hatch plan to cull double (4)
Solution:
ROUNDUP=DRSEUSS|
E=N=I=E=U=C=N=I|
DOT=CAROL=RIPEN|
E=I=K=V=L=O=O=A|
EBENEZER=MOGWAI|
M===N=R=I=G=E==|
ETHOS=SYMMETRIC|
R=E===I=M===E=H|
STROMBOLI=HADAR|
==B=A=N=G=U===I|
GRINCH=GREMLINS|
I=C=H=C=A=B=R=T|
ZAIRE=HINDU=AIM|
M=D=T=A=T=G=T=A|
OVEREAT=SYSTEMS|
Name: 621 - Active Scam
Author: by BenDR