Bloody optimistic (8)
I believe the answer is:
sanguine
This clue is a double definition.
'bloody' is the first definition.
(thesaurus)
'optimistic' is the second definition.
('sanguine' can be a synonym of 'optimistic')
(Other definitions for sanguine that I've seen before include "Confidently optimistic and cheerful" , "Assured, optimistic" , "Cheerfully optimistic" , "Expecting good results" , "Optimistic, confident" .)