Inform, giving a few new ideas about (6)
I believe the answer is:
advise
'inform' is the definition.
(advising is a kind of informing)
'a few new ideas about' is the wordplay.
'a few' becomes 'v'.
'new' indicates an anagram.
'about' indicates putting letters inside.
'ideas' anagrammed gives 'adise'.
'v' put inside 'adise' is 'ADVISE'.
'giving' is the link.
(Other definitions for advise that I've seen before include "Recommend (course of action)" , "Inform (of situation)" , "Offer suggestions about the best course of action" , "Counsel, suggest" , "Counsel, guide" .)