Food Quiz

[foot273]

Got stuck on some questions for a food quiz. All answers are types of food.
Good and useless (4,4)
Gives support on Lake Titicaca? (8,7)
Lake District cheek (5,7)
Rouse up this loaf (11)

Many Thanks for any suggestions

[roopower]

I've got 10,5 for Lake District cheek. First word type of sausage, second word another word for cheek. I haven't got the rest myself yet.