Feeble few days broadcasting (4)
I believe the answer is:
weak
'feeble' is the definition.
(I know that feeble can be written as weak)
'few days broadcasting' is the wordplay.
'few days' becomes 'week' (a week is 7 days).
'broadcasting' indicates a 'sounds like' (homophone) clue.
'week' is a homophone of 'WEAK'.
(Other definitions for weak that I've seen before include "Feeble or frail" , "Faint; frail" , "Feeble, powerless" , "lacking intensity?" , "Undefended" .)