main impact of an attack crossword clue

 The main impact of an attack crossword clue is damage. Damage is harm or injury caused to something. It can be used to describe the physical or emotional harm caused by an attack.

Here are some other possible answers for the crossword clue "main impact of an attack":

6 letters: HARM

7 letters: DAMAGE

8 letters: INJURIOUS

9 letters: DESTRUCTION

10 letters: CATASTROPHE

I hope this helps!