Crossword Puzzle Big-top performers

Clue: Big-top performers

Show about evening performers' topper varieties? (INTHEHATOFTHENIGHT with 18 letters)
Cap and trade topic (ENERGYTAX with 9 letters)
Romanov bigwig (TSAR with 4 letters)
Bigger band that covered "Bits and Pieces"? (DAVECLARKSIX with 12 letters)
Tops in wariness (LEERIEST with 8 letters)
Bejeweled topper (TIARA with 5 letters)
Freshman's topper (BEANIE with 6 letters)
Campaign promise topic (TAX with 3 letters)
Napa bigwigs (VINTNERS with 8 letters)
Take the biggest piece (HOG with 3 letters)