Get Edna drunk? It's denied! (7)
I believe the answer is:
negated
'denied' is the definition.
(I've seen this in another clue)
'get edna drunk?' is the wordplay.
'drunk?' is an anagram indicator (I've seen 'drunk' mean this).
'get'+'edna'='getedna'
'getedna' with letters rearranged gives 'NEGATED'.
'it's' acts as a link.
(Other definitions for negated that I've seen before include "Contradicted" , "Made ineffective" , "Cancelled or destroyed the effect of something" , "Denied" , "Abrogated" .)