If your iron still needs cleaned afterwards, try Faultless Soleplate cleaner (Lakeland, Amazon, eBay etc). It brings it up like new. Gets rid of scorch marks and steps that draggy feeling you get when it's mucky.
I don't iron clothes, I do however iron hama beads, badly. My dh needs to iron a shirt for work and it appears I have managed to get hama beads stuck to the bottom of the iron. He's in there ironing newspaper as I type but felt I should at least try and help. So this is me helping. Any tips please?