What does "standfirst" mean?

Explanatory text under the main heading of a news article, smaller than the heading but still larger than the main text.

What is a synonym for "standfirst"?

Common synonyms include: kickers.

/ˈstandfəːst/ noun

noun ·Rare ·Advanced level

Noun

1
Explanatory text under the main heading of a news article, smaller than the heading but still larger than the main text. UK
"The standfirst talked of “Jubilation as article 50 is finally served”."

"The standfirst talked of “Jubilation as article 50 is finally served”."

From stand + first.