Clearly see gross monsters (8)
I believe the answer is:
ogresses
'monsters' is the definition.
(I have seen 'Female monsters ' mean 'ogresses' so perhaps 'monsters' could also mean 'ogresses')
'clearly see gross' is the wordplay.
'see gross' anagrams to 'OGRESSES'.
However, I am not clear how this is indicated.
Can you help me to learn more?
(Other definitions for ogresses that I've seen before include "Female fairytale giants" , "Scary women" , "Frightening people" , "ugly women" , "Nasty females" .)