Television presenter with no charm -- an eccentric (9)
I believe the answer is:
anchorman
'television presenter' is the definition.
(I know that anchorman is a type of television presenter)
'no charm an eccentric' is the wordplay.
'eccentric' indicates an anagram.
'no'+'charm'+'an'='nocharman'
'nocharman' anagrammed gives 'ANCHORMAN'.
'with' acts as a link.
(Other definitions for anchorman that I've seen before include "Last runner in a relay race - person presenting a TV show" , "One broadcasting" , "Last person in relay race - TV presenter" , "host" , "Crucial participant" .)