Possible Clues:

• It's not 24 across that's dead in such a tasty way
• How tasteful of Father to be so 15 across
• Dish without a distinctive flavour
• Having good taste like the former father
• Father, now deceased, had good taste
• The sense of taste
• Friend tucked in, showing relish
• What your friend had at the restaurant will depend on it
• Daddy had the good taste to be dead
• It's in good taste for 10 across to be no more