Lots of welcome replies. Thanks.
There are times when there isn't so much to get rid of but other times masses.
I have got a compost bin, which I used religiously for a number of years. Put all the vege peelings in, old fruit, thistles , leaves etc. as instructed. However, I never got any compost. It never got high enough to the level of scooping it out. It turned out that I had what must have been the fattest rats and mice in the whole of Wirral. They were getting in from underneath and having a real feast.
In the past I have had bonfires , particularly when wanting to get rid of dead wood and branches but next doors trees are hanging over to the point of it being a dangerous pastime now.
I have also had a burning bin many years ago and that did work well, until the bottom burnt out, but I think that might be the better option now, and then I can throw the grass cuttings at the top of the garden. Not sure how that will run in preventing green house gases. Anything difficult can go in the green bin.
So in all, everyone has given some great ideas. A combined effort and really appreciated.
Yes , it is a large garden and probably getting too much for me these days. Hedges and tree pruning are the greatest problem as I don't trust myself on ladders any longer.