Be drunk with Electra: have party (9)
I believe the answer is:
celebrate
'party' is the definition.
(I've seen this before)
'be drunk with electra' is the wordplay.
'drunk with' is an anagram indicator.
'be' with its letters anagrammed with 'electra' gives 'CELEBRATE'.
'have' is the link.
(Other definitions for celebrate that I've seen before include "enjoy victory" , "Honour or commemorate" , "have a good time" , "Publicly praise (someone)" , "Commemorate or eulogise" .)