Tyrant with a name for going over the top? (6)
I believe the answer is:
despot
'tyrant' is the definition.
(I know that tyrant can be written as despot)
'a name for going over the top?' is the wordplay.
'a name' becomes 'des' ().
'for' is a charade indicator (letters next to each other).
'going over' says the letters should be written backwards.
'top' written backwards gives 'pot'.
'des'+'pot'='DESPOT'
'with' acts as a link.
(Other definitions for despot that I've seen before include "nasty ruler?" , "Gaddafi, say" , "Posted to tryant" , "Louis XVI was one" , "Tyranical dictator" .)