Talk like one anxious to get a point home (6)
I believe the answer is:
jabber
'talk' is the definition.
(jabbering is a kind of talking)
'one anxious to get a point home' is the wordplay.
I cannot really understand how this works, but
'one' could be 'er' (I've seen this in other clues) and 'er' is located in the answer.
'a' is found in the answer.
This explanation may well be incorrect...
'like' is the link.
Can you help me to learn more?
(Other definitions for jabber that I've seen before include "Indistinct talk" , "Nonsense" , "jaw, senselessly" , "Chatter incoherently" , "Talk quickly and indistinctly" .)