Yes, madame!

Worry

When doubled, enthusiastic

What’s stronger than “might”

Were it possible that

Vend

U.F.C. sport

Truck weigh station unit

‘Tis the season: Abbr.

Thorny part of a rose

The Little Mermaid

Teen’s bedroom, stereotypically

Stick (out)

Starting place for an inventor

Spanish boss, with “el”

Some Xmas card attire … or a hint to 18-, 23-, 37- and 48-Across

Snapple cap fodder

Snafu

Smart ___

Sinister fish in “The Little Mermaid”

Singer/actress Jennifer