Appeal breaking heart, flipping exciting (6)
I believe the answer is:
erotic
'exciting' is the definition.
Both the answer and definition are adjectives. Maybe you can see a link between them that I don't see?
'appeal breaking heart flipping' is the wordplay.
'appeal' becomes 'it' ('it' can mean something attractive or appealing).
'breaking' means one lot of letters goes inside another.
'heart' becomes 'core' (synonyms).
'flipping' shows that the letters should be reversed in order.
'it' put into 'core' is 'citore'.
'citore' reversed gives 'EROTIC'.
Can you help me to learn more?
(Other definitions for erotic that I've seen before include "Sexually arousing" , "Sexy" , "Tending to arouse" , "Amatory" , "Calculated to arouse sexual desire" .)