Raving (7)
'raving' is the definition.
(thesaurus)
This is all the clue.
(Other definitions for delirious that I've seen before include "In wild ecstasy" , "In a state of wild excitement" , "Frenzied" , "Ecstatic" , "Highly excited - hallucinating" .)
'raving' is the definition.
('rant' can be a synonym of 'rave')
This is all the clue.
(Other definitions for ranting that I've seen before include "Raving, haranguing" , "Shouting wildly" , "Making a loud and angry speech" .)