A male, perhaps on the radio programme (6)
I believe the answer is:
agenda
'programme' is the definition.
(agenda is a kind of programme)
'a male perhaps on the radio' is the wordplay.
'male perhaps' becomes 'gender'.
'on the radio' indicates a 'sounds like' (homophone) clue.
'gender' sounds like 'genda'.
'a'+'genda'='AGENDA'
(Other definitions for agenda that I've seen before include "things still to be done" , "Schedule of items for meeting" , "Business to be transacted" , "List of items to be discussed" , "things to discuss" .)