I value being furious! (5)
I believe the answer is:
irate
'furious' is the definition.
(thesaurus)
'i value' is the wordplay.
'value' becomes 'rate' ('rate' can be a synonym of 'value').
'i'+'rate'='IRATE'
'being' acts as a link.
(Other definitions for irate that I've seen before include "Angry, enraged" , "Extremely cross" , "Angry, annoyed" , "will be up in arms" , "Narked" .)