Get Involved In; Step in to Prevent Trouble

This page is the CodyCross answer for the clue below from Welcome to Japan, Group 577, Puzzle 4 (Nakano Broadway).

Question is: Get Involved In; Step in to Prevent Trouble

and the answer is: INTERVENE

Word Meaning:

INTERVENE — (intransitive) To become involved in a situation, so as to alter or prevent an action. [with in]

Definitions from Wiktionary.