Heartache as pride shattered (7)
I believe the answer is:
despair
'heartache' is the definition.
(I've seen this in another clue)
'as pride shattered' is the wordplay.
'shattered' is an anagram indicator.
'as'+'pride'='aspride'
'aspride' anagrammed gives 'DESPAIR'.
(Other definitions for despair that I've seen before include "Total loss of hope" , "Misery" , "The feeling that nothing will turn out well" , "Feeling of hopelessness" , "Lose heart" .)