Puzzle

 ACROSS

  1 "I Do" singer Lisa

  5 Purpose

  8 Brown spot?

 14 *Humorist Bombeck (circle letters 2 and 3)

 15 Hot off the presses

 16 Tennis great Andre

 17 Out of the wind

 18 **Student's respite (5 and 6)

 20 Carrot's cousin

 22 Oil grp.

 23 *Genetic letters (2 and 3)

 24 Knoxville sch.

 26 Pass over

 30 Stevenson of '50s politics

 32 **Soldier's denial (4 and 5)

 35 Dogfish Head brew

 36 "Judge me by my size, do you?" speaker

 37 Alps, e.g.: Abbr.

 38 Justification

 40 Tasteless sorts, or a hint to each starred group of circled letters

 43 Some believers

 45 Start to "starter"

 46 Taunt

 49 It may be framed

 50 ***Game with rooks (1 and 2)

 52 Eddie Van ___

 53 ___ Mawr

 55 Choice word?

 57 ****Winter D.C. setting (1 and 2)

 58 Bug-eyed

 61 Rashly

 63 ***AC controller (5 and 6)

 67 ___ Xtra (soda)

 68 Zany

 69 I, on a clock

 70 ****No aristocrat (2 and 3)

 71 Pizza party leftovers

 72 Fashionable initials

 73 Lug around

DOWN

  1 *Quadrennial occurrence (3 and 4)

  2 Universal Studios Florida site

  3 Dorothy's destination

  4 *Sweethearts, in modern lingo (3 and 4)

  5 Ill-suited

  6 Cobras and such

  7 Female sheep

  8 Dogpatch cartoonist Al

  9 "A Death in the Family" author

 10 **Call before "Polo!" (4 and 5)

 11 Last Greek consonant

 12 G.I. entertainers

 13 Punk rocker Vicious

 19 **Ages and ages (2 and 3)

 21 Rapa ___ (Easter Island)

 25 What a fool makes

 27 Launch facility

 28 Wall St. debut

 29 Beachgoer's goal

 31 Contented sounds

 33 Tehran's land

 34 Theologian's subj.

 37 Go well together

 39 Bit of pond scum

 41 Abbr. after a comma

 42 Sarajevo residents

 43 Small amount

 44 Mess up

 47 Greatest chance

 48 ****African site of a 1976 rescue (4 and 5)

 51 ***Brain scans, for short (2 and 3)

 52 Snicker syllable

 54 ***Drug cops (1 and 2)

 56 Recon mission aim

 59 Future MBA's hurdle

 60 "My bad!"

 62 ****Datebook entry, briefly (1 and 2)

 63 Network for cinephiles

 64 Laugh syllable

 65 End of Yale's URL

 66 Kind of poodle

Solution