Defeat decisively

The clue of the crossword puzzle is ‘Defeat decisively,‘ and the answer is ‘THRASH.‘ ‘Defeat decisively‘ means to beat someone or something completely and overwhelmingly. ‘Thrash‘ is a verb that means to beat or strike repeatedly with force, or to defeat thoroughly. Therefore, ‘thrash‘ is a suitable answer for the given crossword clue, as it matches the definition and meaning of the phrase ‘defeat decisively.‘