
1) Debut single 2) Despair 3) Disillusionment 4) Earth, or hater 5) Hater 6) Love triangle result often 7) Lovelorn symptom 8) Result of a split
Found on
https://www.crosswordclues.com/clue/broken-heart

A broken heart (or heartbreak) is a common metaphor for the intense emotional pain or suffering one feels after losing a loved one, whether through death, divorce, breakup, physical separation, betrayal, or romantic rejection. Heartbreak is usually associated with losing a family member or spouse, though losing a parent, child, pet, lover or close...
Found on
http://en.wikipedia.org/wiki/Broken_heart

Broken heart is London Cockney rhyming slang for to emit wind from the anus (fart).
Found on
http://www.probertencyclopaedia.com/browse/ZBA.HTM
noun devastating sorrow and despair; `he is recovering from a broken heart`; `a broken heart languishes here`
Found on
https://www.encyclo.co.uk/local/20974

despair; disillusionment; devastating sorrow, esp. from disappointment in love.
Found on
https://www.infoplease.com/dictionary/broken-heart
No exact match found.