Try account in article for sadness (9)
I believe the answer is:
heartache
'for sadness' is the definition.
(I have seen 'Great sadness ' mean 'heartache' so perhaps 'sadness' could also mean 'heartache')
'try account in article' is the wordplay.
'try' becomes 'hear' (as in to try someone in court or hear their case).
'account' becomes 'ac' (abbreviation for account).
'in' indicates putting letters inside.
'article' becomes 'the' (the definite article in English).
'ac' inserted into 'the' is 'tache'.
'hear'+'tache'='HEARTACHE'
(Other definitions for heartache that I've seen before include "Suffering" , "Grief" , "Emotional distress" , "it gives rise to anguish" , "Emotional anguish" .)