Possible Clues:

• 'Fed up with dining, not winning (9)'
• Crushing, say
• Ruining brill experience in restaurant?
• Fed up with being fed - just to have you beat
• Fed up with winning by wining and dining
• Fed up with food if you're on the winning side
• Fed up with the food that's beating you
• Fed up with having 24 across - it's getting the better of me
• Winning victory over
• Fed up with getting food - it's getting me beat