Drunken yob tries not drinking (8)
I believe the answer is:
sobriety
'drunken yob tries not drinking' is the definition.
I can't tell whether this defines the answer.
'drunken yob tries' is the wordplay.
'drunken' indicates anagramming the letters.
'yob'+'tries'='yobtries'
'yobtries' is an anagram of 'SOBRIETY'.
Can you help me to learn more?
(Other definitions for sobriety that I've seen before include "Calmness -- 8 -- by Tories (anag)" , "Rational, non-intoxicated condition" , "Abstemiousness" , "characteristic of judge, supposedly" , "restraint" .)