Cross discontented imbiber judged about sex (9)
I believe the answer is:
irritated
'cross' is the definition.
(I've seen this before)
'discontented imbiber judged about sex' is the wordplay.
'discontented' means to remove the middle letters (the word's contents are removed).
'judged' becomes 'rated' (rating is a kind of judging).
'about' indicates putting letters inside.
'sex' becomes 'it' (a common euphemism).
'imbiber' with its centre taken out is 'ir'.
'rated' placed around 'it' is 'ritated'.
'ir'+'ritated'='IRRITATED'
(Other definitions for irritated that I've seen before include "Annoyed" , "rubbed up the wrong way" , "put out" , "Stimulated" , "Irked" .)