The New York Times

ACROSS

1 Fuel efficiency

letters

4 They may join in a

circle

8 Big-box hardware

chain

13 “That’s it!”

14 Model Campbell

16 Cricket fields and badminton racket heads, for two

17 Punishes

19 Interrupt ... or what to do as you enter the answer to the previous clue

20 Aptly named ski

town in Utah

21 Stop the clock

23 Compact disc?

25 Hot spot in the

afternoon, say

26 I.C.U. specialists

29 Backed financially

31 Prep for surgery ... or what to do as you enter the answer to the previous clue

34 Multiple of one?

36 City whose name is Siouan for “good place to dig potatoes”

37 Primitive kind of

diet

41 Subject of job offer

negotiations

43 They get high twice

a day

44 Actress Munn

46 One of Alcott’s

Little Women

48 Workplace with no

commute

50 Leave ... or what

to do as you enter the answer to the previous clue

55 Constellation next

to Ursa Major

56 Prefix with skeleton

58 Hagia ___ (World Heritage Site in Istanbul)

59 Concession stand

morsel

63 One of the pounds

in a pound cake

64 Brazenly

disregarding

66 Flail at home plate ... or what to do as you enter the answer to the previous clue

68 “Heaven forbid!”

69 Pledge drive bags

70 Gold in them thar

hills, e.g.

71 Promise

72 Home to the oldest continuously operating university in the Americas

73 Retreat

DOWN

1 Sophisticated

ladies

2 Queen Elizabeth’s

husband

3 Prefix with -pod

4 Alex and ___

(jewelry brand)

5 Affiliated group of M.C.s, as for Death Row Records

6 Rum mixer

7 Refine, in a way

8 Plot points?

9 Fallopian tube

traveler

10 Something to sleep

on with no springs

Edited by Will Shortz No. 0519

11 Country’s ___

Young Band

12 Only four-ninths of it is usually shown: Abbr.

15 Lands in the ocean

18 Media journalist

David

22 It’s said to be “the art of recognizing when to be big and when not to belittle”

24 Holy Roman emperor beginning in 973

27 Quickly heat up, in

a way

28 Yellow Pages section after “Sound Systems”

30 Dramatic tango

move

32 Abstract

Expressionist Mark

33 News inits. since

1958

35 Snag

37 Four-time Hugo Award winner Frederik

38 Potted ornamental

39 Prom night booking

40 Biblical progenitor

42 “And ___ …”

45 Super-duper

47 Better prepared,

perhaps

49 Just be oneself

51 Sport in which you could use some pointers?

52 “Great to hear!”

53 Reckon

54 Secure

57 In first place

60 Psychoanalyst Freud, daughter of Sigmund

61 Marty Feldman’s role in “Young Frankenstein”

62 Big name in Art

Deco

64 N.F.L. threepointers: Abbr.

65 Temperature

extreme

67 Sch. 50 miles west

of 36-Across