1
Two-seater's extended relative
5
Abbreviation for a walker's crossing, briefly
8
Short for a QB Prescott in the NFL
13
Curved formation in the clouds
17
Netherlands' favorite with a smoky twist
18
Abbrev. time of changing colors
19
Here today, gone tommorow
20
It's positively essential in physics
21
Extended ride at a gala, maybe
23
Like a perfectly formulated canvas
25
Active ones in society
28
Start of a Rocky Mountain institution, briefly
29
Stylishly sophisticated
31
Cutting edge, as technology... and a clue for 15, 23, 43, and 54 across
37
Fuel brand with a blue and orange logo
39
Unit of pressure, briefly
40
Pertaining to points of intersection
42
Aspirin or acetaminophen, e.g.
49
Like some consequences
53
Soft, like a tranquil tune
54
Having waved a white flag, e.g.
57
Start of Grande's fanbase
58
Prefix for "bility" or "dvertently"
59
Decorative detail set into a surface
61
What could lead to one tripping