THE OLD ONE-TWO
Credit: Will Shortz in The Puzzlemaster Presents

Reverse the first two letters of the answer to the first clue to get the answer to the second clue. Example: County in Northern Ireland / shine....................Ulster / luster

1. Most unusual / Take into police custody
2. Choice /Magical drink
3. Iconic brand of jeans / "The King"
4. Shade tree /Enough
5. Height / Degrees from the equator
6. Kind of energy / Difficult to understand
7. Storefront cover / On the way out
8. Make god-like / strengthen, build up

Answers:

1. Rarest / Arrest
2. Option / Potion
3. Levis / Elvis
4. Maple / Ample
5. Altitude / Latitude
6. Nuclear / Unclear
7. Awning / Waning
8. Deify / Edify