Keyed-up broadcasting boss in East Yorkshire originally (4)
I believe the answer is:
edgy
'keyed-up broadcasting' is the definition.
I can't judge whether this definition defines the answer.
'boss in east yorkshire originally' is the wordplay.
'boss' becomes 'ed' (short for editor - newspaper boss).
'in east' becomes 'g' (I can't justify this - if you can you should believe this answer much more).
'originally' says to take the initial letters.
The first letter of 'yorkshire' is 'y'.
'ed'+'g'+'y'='EDGY'
Can you help me to learn more?
(Other definitions for edgy that I've seen before include "Nervous; jumpy" , "Visibly nervous" , "Nervous and tense, irritable" , "Uneasy" , "Anxious" .)