The drunker the meaner (7)
I believe the answer is:
tighter
'the meaner' is the definition.
(I've seen this before)
'the drunker' is the wordplay.
I cannot really understand how this works, but
an anagram of 'the' is 'hte' which is present in the answer.
This explanation may well be incorrect...
Can you help me to learn more?
(Other definitions for tighter that I've seen before include "More close-fitting" , "even more tense" , "More constricted" , "Meaner" , "more mean" .)