ANAGRAM ACTION
Credit: Chicago Tribune Crossword
Alan P. Olschwang   (#1-6 - adapted)

In each two-word clue below, replace the first word with a synonym or near synonym, and anagram the second to get a new word or familiar expression.

1. Retrogressive PETS
2. Interchange RITES
3. Change ACTIONS
4. Misplaced SAUCES
5. Vacant SWORD
6. Festival DRAPES
7. Stellar THINGS
8. Unexplainable OPTION
9. Rhyming SILENCE
10. Steinway ARTICLES

Answers:

1. Backward step
2. Rotate tires
3. Altercations
4. Lost causes
5. Empty words
6. Holiday spread 
7. Starry nights
8. Magic potion
9. Poetic license
10. Piano recitals