1: PC software

5: Start to mature?

8: Dugout figure

14: Humble

15: With it

16: On solid ground

17: Sea spot

18: 'Sweet Pea' singer Tommy

19: Temper tantrums

20: Place to buy smoked meats

23: Certain secretaries

24: Brooding type?

25: Balaam's mount

28: Feline, to Tweety

29: Too bad

33: Television and radio

34: Miami cagers

35: Hearth heap

38: Beefeater, e.g.

40: Charlie of the Rolling Stones

41: Smack, as a baseball

42: Turkish money

44: 'Our father'

48: Picked up a lap

51: Methodology (abbr.)

52: Many, many moons

53: College speaker

55: Quip, part 2

58: False start?

61: Feed seed

62: They may be liberal

63: Inaugurated

64: 'You ___ here'

65: 'Far out!'

66: Insultingly small

67: Pinot Noir or Merlot

68: Have a fling?

1: In the thick of

2: Spanish monetary unit

3: BB, e.g.

4: Length of yarn

5: Expressed in words

6: Civil unrest

7: Olympic weapon

8: Type of hound

9: Trip up a mountain

10: '___ Came You' (1974 Dionne Warwick and Spinners chart-topper)

11: '___ appétit!'

12: Unwrought iron

13: 'Sure thing!'

21: Prepares an apple, perhaps

22: '___ Loves You'

25: Assist larcenously

26: Trellis piece

27: Tennis match divisions

30: Job for the Blues Brothers

31: Train lines?

32: Finder's cries

33: Dole (out)

35: Ancient Egyptian emblems

36: Rock gently

37: Milliner's stock

39: Louse egg

40: Merchandise

43: Akin

45: Re this clue, now it's you

46: Unimportant person

47: Undivided

48: Boom box

49: Vessels in trunks

50: Assignations

54: Rhythmic shout

55: Peck partner

56: Niagara Falls sound

57: Have the nerve

58: The old man

59: Resort hotel

60: Slim swimmer