Across:
1. Take possession of carbon copy circulating around outside university (6)
4. Dog set out to find filling food (6)
9. Stop American team returning (4)
10. Plots with friends to steal crockery (10)
11. Live with heads of five old ugly lettuces in soil (6)
12. Strange clerical division (8)
13. Washing cold, slim Carol (9)
15. Came across hophead with 25 (4)
16. Stack rail coke oddly (4)
17. I have sex time after time before becoming repetitious (9)
21. He reckons rough seas get Lawrence to turn back (8)
22. Pack one article inside for sister (6)
24. Consultant returns inside with time to get local paper (10)
25. Cannabis is found under centre mat (4)
26. He was down in the woods with two eggheads long ago (6)
27. Relax charge for accommodation around centre of Toledo (6)
Down:
1. Let Ma be silly and take crust off loaf before finding flour (7)
2. Doctor is captivated by sound of flyers’ group (5)
3. One cleaner comes back with fruit (7)
5. Wise woman goes behind Turk's Head to look for birds (6)
6. Most dangerous diet leads to collapse! (9)
7. The old cat follows the cockney chap with facial hair (7)
8. Needleworker has joke when one copper caught sightseer’s missing ring outside (13)
14. Nemesis of 19, possibly (4 5)
16. Make haste and finish with writer! (7)
18. Official is about to let go captured Egyptian leader (7)
19. Unfortunate avid university head gets cold on Tamar’s first bridge (7)
20. Headless wraiths run to goddess (6)
23. Projection of unrestrained glee about first of December (5)
Solution:
=OCCUPY=STODGE=
=A=O=O=A=W=E=Y=
STEM=MACHINATES
=M=B=E=U=T=D=L=
BEFOUL=PECULIAR
=A===O=U=H=I=S=
CLEANSING=METH=
===R===C===S===
=RICK=ITERATIVE
=U=H=I=U=E===I=
ASSESSOR=FILIAL
=H=N=H=I=E=E=D=
ADVERTISER=DRUG
=I=M=A=T=E=G=C=
=EEYORE=RELENT=
Name: Puzzle 501
Author: by Steve Townsend

Annos-Across:
1. OC [C(arbon) U(niversity)] PY (anag copy)(anagrind = circulating)
4. STODGE (anag Dog set)(anagrind = out)
9. STEM (= METS reversed)
10. MA [CHINA (= crockery)] TES (= friends)
11. BE (= Live) F(ive) O(ld) U(gly) L(ettuces)
12. Double Def
13. C(old) LEAN (= slim) SING (= Carol)
15. MET (= Came across) H(op)  (25 = 25 across)
16. R(a)I(l)C(o)K(e)
17. IT (= sex) ERA (= time) T(ime) IVE (= I have)
21. ASSE (anag seas)(anagrind = rough) SSOR (= ROSS reversed)
22. FIL [I (= one) A (= article)] L (= Pack)
24. ADV [ER (= RE reversed) T(ime)] ISER (= Consultant)
25. (un)D(er) RUG (= mat)
26. E(gg) E(gg) YORE (= long ago)
27. RE [(To)LE(do)] NT (= charge for accommodation)
Annos-Down:
1. (l)OA(f) TMEAL (anag Let Ma)(anagrind = be silly)
2. CO [MB (= Doctor)] O (= sound of flyers)
3. POMELOS (= SOLE MOP reversed)
5. T(urk) WITCH (= Wise woman)
6. DEADLIEST (anag diet leads)(anagrind = to collapse)
7. E (= the cockney chap) YE (= The old) LASH (= cat)
8. A (= one) CU (= copper) PUN (= joke) C(aught) T(-O)URIST (= sightseer)
14. 19 = 19 down
16. RUSH (= Make haste) DIE (= finish)
18. RE (= about) F [E(gyptian)] REE (= let go)
19. VIAD (anag avid)(anagrind = Unfortunate) U(niversity) C(old) T(amar)
20. ISHTAR (anag raiths)(anagrind = run)
23. LE [D(ecember)] GE (anag glee)(anagrind = unrestrained)
Defs-Across:
1. Take possession of
4. filling food
9. Stop
10. Plots
11. soil
12. Strange
12. clerical division
13. Washing
15. 25
16. Stack
17. repetitious
21. He reckons
22. for sister
24. local paper
25. Cannabis
26. He was down in the woods
27. Relax
Defs-Down:
1. flour
2. group
3. fruit
5. look for birds
6. Most dangerous
7. facial hair
8. Needleworker
14. Nemesis
16. writer
18. Official
19. bridge
20. goddess
23. Projection