BBC sold out media broadcast at a loss (15)
I believe the answer is:
discombobulated
'at a loss' is the definition.
(both can mean confused)
'bbc sold out media broadcast' is the wordplay.
'broadcast' indicates an anagram.
'bbc'+'sold'+'out'+'media'='bbcsoldoutmedia'
'bbcsoldoutmedia' with letters rearranged gives 'DISCOMBOBULATED'.
(Other definitions for discombobulated that I've seen before include "Confused" , "In a tizz" .)