Very ugly; grotesque (7)
I believe the answer is:
hideous
I believe this clue is a double definition.
'very ugly' is the first definition.
(I've seen this before)
'grotesque' is the second definition.
(thesaurus)
(Other definitions for hideous that I've seen before include "Extremely unpleasant" , "Frightful" , "Horrible" , "revolting" , "Ghastly" .)