Across
1  Computer component
4  Lou's friend Bud
9  Numbers person
12  Berets
14  Light emitting __
15  Empty space
16  "___ poor Yorick"
17  Eyed
18  Small particle
19  Practice
21  See 34 Across
23  Sign
24  Yang's cohort
25  Professional
28  Shrill bark
31  Volcanic flow
34  With 21 across, 7201 S. Central
36  Direction from Phoenix to Gila Bend
38  Arctic
40  Bide
41  Dysart Rd. and Van Buren
43  Land unit
44  Male cat
45  Measurement of heat (abbr.)
46  Keel
48  Memo
51  Brain scan (abbr.)
53  More's converse
54  "Back to the ___", Wings album
56  Clairvoyance
58  Organic compound
61  Special event at Mexican eatery?
66  Snaky fish
67  Sporty car brand
69  Blessing
70  Discount
71 Warning whistle
72  Reverent
73  Bullfight cheer
74  2245 E. Main St. (Mesa)
75  Want ___