He's a tyrant? Just some ''goatish'' fellow (5)
I believe the answer is:
satyr
'fellow' is the definition.
(I have seen 'oversexed fellow' mean 'satyr' so perhaps 'fellow' could also mean 'satyr')
'he's a tyrant? just some' is the wordplay.
'just some' indicates a hidden word.
'SATYR' can be found hidden inside 'hes a tyrant'.
''goatish'' acts as a link.
This may not be right. It may belong to another bit of the clue.
Can you help me to learn more?
(Other definitions for satyr that I've seen before include "Classical deity" , "Goatlike deity of Greek myth" , "Oversexed chap" , "Lustful, drunken woodland god" , "Lustful Greek woodland god" .)