Scary female going out topless with nothing on (6)
I believe the answer is:
ogress
'scary female' is the definition.
(female ogre)
'going out topless with nothing on' is the wordplay.
'going out' becomes 'egress' (act of exiting).
'topless' means to remove the first letter.
'with' is a charade indicator (letters next to each other).
'nothing on' becomes 'o' (I've seen this in other clues).
'egress' with its initial letter taken away is 'gress'.
'gress' after 'o' is 'OGRESS'.
(Other definitions for ogress that I've seen before include "Female giant in fairytales" , "Terror" , "Harridan" , "Terrifying female" , "Female monster" .)