Related Clues:

• Sharp tasting- like kind of pie?
• Sour, or an open cake
• A bit sour like open cake
• A bit sour, like flattish pie
• Open pastry filled with apple or jam
• Pie with fruit filling
• Somewhat sour like flat cake
• Open cake with jam etc
• Tasting sour like a lemon
• Sour-tasting pie?
• Sharp or sour in taste
• Flat pie
• However sweet, you'll not find her an 11 across
• However sweet, she can't be crusty with customers
• Like Granny Smiths