Ad Hoc Style of Antics Performed by Actors

This page is the CodyCross answer for the clue below from Ballroom Dancing, Group 1921, Puzzle 4 (International).

Question is: Ad Hoc Style of Antics Performed by Actors

and the answer is: IMPROV

Word Meaning:

IMPROV — (informal) Improvisation.

Definitions from Wiktionary.