Cutting the grass with a sickle every day is such a bother.
Something is a trouble (面倒) and it is smelly (臭い). So what is something that's smelly and a trouble? Well, something that's troublesome or a bother, I suppose. Basically you can ignore the smelly part. For some reason someone threw that back in, but smelly things are a bother, I suppose.
The reading is the words 面倒 plus 臭い added together. Just make sure you know those words and you'll know this one too!