Tito’s card lost in autocracy (12)
I believe the answer is:
dictatorship
'autocracy' is the definition.
(I know that dictatorship is a type of autocracy)
'tito's card lost in' is the wordplay.
'lost' indicates anagramming the letters.
'in' becomes 'hip' (both can mean fashionable).
'titos'+'card'='titoscard'
'titoscard' with letters rearranged gives 'dictators'.
'dictators'+'hip'='DICTATORSHIP'
(Other definitions for dictatorship that I've seen before include "Absolute form of government" , "Government by such as Julius Caesar" , "Totalitarianism" , "Form of rule" , "Absolute rule" .)