Frantically get appeal in for first offence? (6,5)

I believe the answer is:

eating apple

I'm a little stuck... Click here to teach me more about this clue!

But I can't explain it at all! Could you help me understand?

(Other definitions for eating apple that I've seen before include "E.g. Cox's orange pippin" , "Eg, Cox" , "Braeburn, perhaps" , "Edible fruit" , "first offence" .)

Want a hint initially instead of a full solution? Install my app