Thrilling (8)
There are a few possibilities for this:
electric
'thrilling' is the definition.
(I've seen this in another clue)
This is the entire clue.
(Other definitions for electric that I've seen before include "Tense" , "Emotionally charged" , "Type of chair, hare, shock etc" , "Full of expectation" , "Mains-powered or thrilling" .)
'thrilling' is the definition.
('exhilarate' can be a synonym of 'thrill')
This is all the clue.
(Other definitions for exhilarating that I've seen before include "Very uplifting" , "Making very happy" , "Making one feel lively and cheerful" , "Enlivening" .)
'thrilling' is the definition.
(I know that thrilling can be written as electrifying)
This is all the clue.