@jeremyccc You're welcome! I keep lots of links handy for identification and research purposes. Most are for North America, but I have a few for the UK. =)
Hi Jeremy! I use a plant ID app on my phone ("Picture This") It identifies your mushroom as "shaggy mane" (aka 'lawyer's wig" or "shaggy ink cap"), but I don't know. The app can make mistakes...? But this could give you something to look into. Thanks for the question :)
I don't think I would risk eating it. A woman in Victoria has just been charged with poisoning her relatives. I think three of them died but the other one survived.