Shadow or Not?

Across

1Highly valued lean-fleshed northern fish (4)
3Armor plate that protects the chest (4)
6Find repugnant (5)
9The northernmost point of the Earth's axis (5,4)
10Saloons (4)
12Broadcasting channel (7)
13A treeless grassy plain (7)
14Undertaking (4)
16Young birds esp. of domestic fowl (6)
18Popular middle name for a girl (3)
20The waging of armed conflict against an enemy (3)
21Musical keyboard instruments (6)
22Declare untrue; contradict (4)
24Mount _______ is the highest mountain on Earth (7)
26The largest city and financial center of Israel (3,4)
28Thought (4)
29Large long-armed ape (9)
30Any admirable quality or attribute (5)
31Dye with a color (4)
32Humble request for help (4)

Down

1Official groundhog, ____________ Phil (12)
2An Asian peninsula (5)
4Woodchuck (9)
5Woolly usually horned mammal (5)
6Place a value on; judge the worth of something (8)
7Sleep during winter, as of certain animals (9)
8A seat for one person (5)
11Home State of Punxsutawney Phil (12)
15A verbal act of admitting defeat (9)
17Hold back (9)
19A prediction about how something (as the weather) will develop (8)
23Place in a line or arrange so as to be parallel (5)
25Fish (5)
27Urgently needed; absolutely necessary (5)