Would 'sød' apply to food as well or is there another adjective for that?
It would apply to food (e.g. candy)
Example: The candy is very sweet. Slikket er meget sødt
Yeah, I figured that out after seeing another exercise with the adjective used like that.
I wrote 'She is a very cute girl.' It's right, but is this just more along the lines of little girl cute/puppy cute or can it describe an attractive woman. Is 'smuk' the more apt description?
Cute would be translated into "nuttet", which we use more to describe, as you said, a puppy or something like that.