Poet and prophet, connected to broadband internally (9)

'poet' is the definition.
(I know that sonneteer is a type of poet)

'prophet connected to broadband internally' is the wordplay.
'prophet' becomes 'seer' (both can mean someone who tells the future).
'connected' becomes 'on' (synonyms).
'to broadband' becomes 'net' (I am not sure about this - if you are sure you should believe this answer much more).
'internally' is an insertion indicator.
'on'+'net'='onnet'
'seer' placed around 'onnet' is 'SONNETEER'.

'and' is the link.

Can you help me to learn more?