Tend to get upset in current state: depression (11)
I believe the answer is:
indentation
'depression' is the definition.
('indentation' can be a synonym of 'depression')
'tend to get upset in current state' is the wordplay.
'to get upset' indicates anagramming the letters (I've seen 'getting upset' mean this).
'in' indicates putting letters inside.
'current' becomes 'i' (symbol for electric current).
'state' becomes 'nation' ('nation' can be a synonym of 'state'**).
'tend' is an anagram of 'dent'.
'i'+'nation'='ination'
'dent' put into 'ination' is 'INDENTATION'.
(Other definitions for indentation that I've seen before include "depression" , "Deep recess or notch" .)