As simple as the description is, simply destroy as much destructible things as you can when you can, it does not have to be only with your sword in case you wasn't sure, as you see in the video i use my throwing stars which when thrown at a good angle can destroy 2 things at once.
Some other useful information is that i decided to start the game again as i was relatively close to the start but had not played for a few weeks and wanted a story refresher so i decided to start over and at the very beginning where all the swords, samurai outfits, pots etc are in glass cabinets i got this trophy where as i got the Pot breaker trophy on the first play through which as i said i was very early in to the game so i then knew that even starting a new game that the numbers carried over from my first game, so if you are maybe stuck on say a hard level or like me have not played in a while and wish to start over you can be assured that all the things you broke in your first game will carry over when creating a completely new save. So you could actually just keep breaking all those destructible items at the start, save your game, exit via the menu and start a new game and continue to break everything in those rooms at the start, whether you want to just go for the 250 items or 1000 it's up to you but you know if by the end of the game you do not have Demolition Man this is a method that you could use to get it.
(You are not restricted to pots although the name may be deceiving)
This video is recorded just right at the start of the game so you do't have far to go to get to these rooms full of destructible items and cut scenes can be skipped by holding down any button making it nice and quick to get straight to the joy of destroying things.
If like me you have a joy of smashing objects in games that can be smashed you should enjoy getting all three trophies.
I hope this information has helped, happy gaming everyone
