1, 29, 8, 26 down, 8, 29, 1 Song excerp2 from 19T5? (3,3,3,3,3,3,3)

 3 One way to manage a tie at a hearing—victories or otherwise (7,4)

 9 Brew ale, burned within the limits of tolerance (9)

10 Bill loves that which is forbidden (5)

11 Essentially, sick and regressive reputation for someone who once delivered (6)

12 Random friends retreating with élan (8)

14 Disney movie about high school: Sailor’s Guide for Sailors (5,4)

17 Leo’s heroine looks the same in the mirror (4)

19 Unemployed guest of David Letterman (4)

20 Sneakily trap a rich father (9)

22 Foreign orchestra includes piano in program (4,4)

23 Zoroastrian is average, capisce? (6)

26 Sound captured by Saudi oilman (5)

27 Hatter’s routine—it could get you wet (9)

28 Pondered and re-enslaved? (11)

29 See 1 across

 1 Broadway musical that’s nothing like Footloose (3,4,4)

 2 Puzzle: how a duck can walk without a head (5)

 3 Pervert musketeer without leader in obviously hostile courses of action (8)

 4 Arrests odd characters in (near) base (4)

 5 Suspect and besmirch all jewelry, uncovered and returned (5,1,3)

 6 Peter Tosh welcomes Mary, at last, to enter again (6)

 7 Scarecrow, for instance, is an easy one to deal with (2-7)

 8 See 1 across

13 Actor’s accounts of wastelands (5,6)

15 Part T or A, for example (4,5)

16 Somebody like Savion Glover can depart, unfortunately (3,6)

18 Resume covering brain with healthful substance (7,1)

21 A fruit in your mouth is cool (6)

24 Hard, small quarrel (5)

25 Stain blouses upside down (4)

26 See 1 across
 

ACROSS 1 2 defs. 5 INTE(G)R + A
9 G(ENOC)ID + AL (rev.) 10 F(L)ORA
11 EPS + OMS + A + LT’S 12 I GO + R
13 hidden 15 POTASSIU + M (I pass out
anag.) 18 ref. 22 across 19 MU + FTI (fit
anag.) 21 A + FA[i]R 22 anag. 26 I(BIZ)
A 27 P(O)INCIANA (in a panic anag.) 
28 GE(RAIN)T 29 GRA[b] + TINE
 
DOWN 1 TI(GRE + A)N (rev.)
2 N(ONE)S 3 INC + UM + BENT
4 RED CAR + PET 5 IS + LET 6 TU(F)T 7 GO + OD GRIEF (fog ride anag.)
8 AN + AGRA + M (ref. 1 across 5, 28, 29, 1 down, 18, 20) 14 CHE(VALI[d])ER
16 anag. 17 SI + MULA + CRA (rev.)
18 2 defs. 20 2 defs. 23 anag. 24 init. letters 25 MAG + I (rev.)