Naked babes ruined part of breakfast? (5,5)
I believe the answer is:
baked beans
'part of breakfast?' is the definition.
(eg part of a full English breakfast)
'naked babes ruined' is the wordplay.
'ruined' indicates anagramming the letters.
'naked'+'babes'='nakedbabes'
'nakedbabes' is an anagram of 'BAKED BEANS'.
(Other definitions for baked beans that I've seen before include "Full English breakfast essential?" , "Haricots in tomato sauce" , "Tinned vegetables" , "food campers might have" , "veg too" .)