Smells problem
2004 Vauxhall Astra Manual 80000 miles

My missus just pulled up outside our house and complained of a burning smell so in looked in the bonnet and a small amount of smoke was coming from near the engine. A small amount of oil was dripping from the area arrowed on the picture attached. I'd be really grateful for any advice you guys can give me before I get ripped off by some garage lol.

Thanks all.