Income in year unfortunately reversed (6)
I believe the answer is:
salary
'income' is the definition.
(thesaurus)
'year unfortunately reversed' is the wordplay.
'year' becomes 'yr' (abbreviation).
'unfortunately' becomes 'alas' (I've seen this before).
'reversed' is a reversal indicator.
'yr'+'alas'='yralas'
'yralas' in reverse letter order is 'SALARY'.
'in' is the link.
(Other definitions for salary that I've seen before include "Remuneration for Ray and Sal" , "Worker's pay" , "Regular income from employment" , "Stipend" , "Annual pay" .)