Television segment is broadcast from conference? There is only one name for it!
I believe the answer is:
clip-on
'television segment is broadcast from conference? there is only' is the definition.
I can't tell whether this defines the answer.
'one name for it' is the wordplay.
I cannot quite understand how this works, but
'one' could be 'li' (I've seen this in other clues) and 'li' is located in the answer.
'name' could be 'n' (common abbreviation e.g. on forms) and 'n' is found in the answer.
This explanation may well be incorrect...
Can you help me to learn more?
(Other definitions for clip-on that I've seen before include "Easily removable tie" , "Attachable" , "Gripping accessory" , "Like some ties" , "Attached like a bow tie, for example" .)